NEET 2013 · Chemistry

NEET 2013 Chemistry Questions with Solutions

The NEET 2013 paper had 44 Chemistry questions from 18 chapters.

Chemical Bonding and Molecular Structure had the most questions (10), followed by The d- and f-Block Elements with 5.

7 questions below have the answer and explanation free; the other 37 are in Premium.

Practise NEET 2013 Chemistry free

Chemistry questions: 44
Chapters covered: 18
Solved free here: 7 of 44
Easy / Medium / Hard: 13 / 25 / 6

Difficulty is NEET MIND's own tag for each question.

Chapter-wise: NEET 2013 Chemistry

How many questions each chapter had in NEET 2013. Open a chapter for its questions from every year.

All 44 NEET 2013 Chemistry questions

In paper order. Try each one, then open the answer where it is shown.

Question 1 (NEET 2013, Q47)
Structure of AtomEasy
What is the maximum number of electrons that can be associated with the following set of quantum numbers: $n = 3$ , $l = 1$ and $m = -1$ ?
1. Option A: 10
2. Option B: 6
3. Option C: 4
4. Option D: 2
The answer and explanation for this question are in NEET MIND Premium.
Question 2 (NEET 2013, Q48)
Chemical KineticsHard
What is the activation energy for a reaction if its rate doubles when the temperature is raised from $20^\circ C$ to $35^\circ C$ ? $(R = 8.314\,J\,mol^{-1}K^{-1})$
1. Option A: $342\,kJ\,mol^{-1}$
2. Option B: $269\,kJ\,mol^{-1}$
3. Option C: $34.7\,kJ\,mol^{-1}$
4. Option D: $15.1\,kJ\,mol^{-1}$
The answer and explanation for this question are in NEET MIND Premium.
Question 3 (NEET 2013, Q49)
ElectrochemistryMedium
A hydrogen gas electrode is made by dipping platinum wire in a solution of HCl of pH = 10 and by passing hydrogen gas around the platinum wire at one atmosphere pressure. The oxidation potential of the electrode would be
1. Option A: $0.059\,V$
2. Option B: $0.59\,V$
3. Option C: $0.118\,V$
4. Option D: $1.18\,V$
The answer and explanation for this question are in NEET MIND Premium.
Question 4 (NEET 2013, Q50)
Chemical KineticsMedium
A reaction having equal energies of activation for forward and reverse reactions has
1. Option A: $\Delta S = 0$
2. Option B: $\Delta G = 0$
3. Option C: $\Delta H = 0$
4. Option D: $\Delta H = \Delta G = \Delta S = 0$
The answer and explanation for this question are in NEET MIND Premium.
Question 5 (NEET 2013, Q51)
ElectrochemistryMedium
At $25^\circ C$ molar conductance of $0.1$ molar aqueous solution of ammonium hydroxide is $9.54\,ohm^{-1}\,cm^2\,mol^{-1}$ and at infinite dilution its molar conductance is $238\,ohm^{-1}\,cm^2\,mol^{-1}$ . The degree of ionisation of ammonium hydroxide at the same concentration and temperature is
1. Option A: $2.080\%$
2. Option B: $20.800\%$
3. Option C: $4.008\%$
4. Option D: $40.800\%$
The answer and explanation for this question are in NEET MIND Premium.
Question 6 (NEET 2013, Q52)
Structure of AtomMedium
Based on equation $E=-2.178\times10^{-18}J\left(\frac{Z^2}{n^2}\right)$ certain conclusions are written. Which of them is not correct?
1. Option A: The negative sign means that the energy of electron bound to nucleus is lower than it would be at infinite distance
2. Option B: Larger the value of $n$ , larger is orbit radius
3. Option C: Equation can be used to calculate change in energy when electron changes orbit
4. Option D: For $n=1$ , the electron has a more negative energy than for $n=6$ which means electron is more loosely bound in smallest orbit
The answer and explanation for this question are in NEET MIND Premium.
Question 7 (NEET 2013, Q53)
ElectrochemistryMedium
A button cell used in watches functions as follows: $Zn(s)+Ag_2O(s)+H_2O(l) \rightleftharpoons 2Ag(s)+Zn^{2+}(aq)+2OH^{-}(aq)$ If half-cell potentials are: $Zn^{2+}(aq)+2e^- \rightarrow Zn(s),\ E^\circ=-0.76V$ $Ag_2O(s)+H_2O(l)+2e^- \rightarrow 2Ag(s)+2OH^-(aq),\ E^\circ=0.34V$ The cell potential will be
1. Option A: $1.10\,V$
2. Option B: $0.42\,V$
3. Option C: $0.84\,V$
4. Option D: $1.34\,V$
The answer and explanation for this question are in NEET MIND Premium.
Question 8 (NEET 2013, Q54)
SolutionsMedium
How many grams of concentrated nitric acid solution should be used to prepare $250\,mL$ of $2.0\,M\;HNO_3$ ? The concentrated acid is $70\%\;HNO_3$ .
1. Option A: $45.0\,g$ conc. $HNO_3$
2. Option B: $90.0\,g$ conc. $HNO_3$
3. Option C: $70.0\,g$ conc. $HNO_3$
4. Option D: $54.0\,g$ conc. $HNO_3$
The answer and explanation for this question are in NEET MIND Premium.
Question 9 (NEET 2013, Q55)
Solid StateEasy
The number of carbon atoms per unit cell of diamond unit cell is
1. Option A: 4
2. Option B: 8
3. Option C: 6
4. Option D: 1
Show answer & explanationHide answer & explanation
Correct answer: (B) 8
Explanation
Diamond has face-centered cubic structure with additional tetrahedral atoms. Total atoms per unit cell: $8$
Question 10 (NEET 2013, Q56)
Some Basic Concepts of ChemistryEasy
Maximum deviation from ideal gas is expected from
1. Option A: $H_2(g)$
2. Option B: $N_2(g)$
3. Option C: $CH_4(g)$
4. Option D: $NH_3(g)$
The answer and explanation for this question are in NEET MIND Premium.
Question 11 (NEET 2013, Q57)
Solid StateHard
A metal has an fcc lattice. The edge length of the unit cell is $404\,pm$ . The density of the metal is $2.72\,g\,cm^{-3}$ . The molar mass of the metal is ( $N_A=6.02\times10^{23}\,mol^{-1}$ )
1. Option A: $40\,g\,mol^{-1}$
2. Option B: $30\,g\,mol^{-1}$
3. Option C: $27\,g\,mol^{-1}$
4. Option D: $20\,g\,mol^{-1}$
Show answer & explanationHide answer & explanation
Correct answer: (C) $27\,g\,mol^{-1}$
Explanation
Using: $d=\frac{ZM}{a^3N_A}$ For FCC, $Z=4 $Substituting values gives:$ $M=27\,g\,mol^{-1}$ $
Question 12 (NEET 2013, Q58)
Chemical Bonding and Molecular StructureMedium
Dipole-induced dipole interactions are present in which of the following pairs?
1. Option A: $H_2O$ and alcohol
2. Option B: $Cl_2$ and $CCl_4$
3. Option C: HCl and He atoms
4. Option D: $SiF_4$ and He atoms
The answer and explanation for this question are in NEET MIND Premium.
Question 13 (NEET 2013, Q59)
Coordination CompoundsMedium
A magnetic moment of $1.73\,BM$ will be shown by one among the following
1. Option A: $[Cu(NH_3)_4]^{2+}$
2. Option B: $[Ni(CN)_4]^{2-}$
3. Option C: $TiCl_4$
4. Option D: $[CoCl_6]^{4-}$
The answer and explanation for this question are in NEET MIND Premium.
Question 14 (NEET 2013, Q60)
The d- and f-Block ElementsEasy
Roasting of sulphide ores gives the gas X as a by-product. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic and acts as reducing agent. The gas X is
1. Option A: $H_2S$
2. Option B: $SO_2$
3. Option C: $CO_2$
4. Option D: $SO_3$
The answer and explanation for this question are in NEET MIND Premium.
Question 15 (NEET 2013, Q61)
Chemical Bonding and Molecular StructureEasy
Which is the strongest acid in the following?
1. Option A: $H_2SO_4$
2. Option B: $HClO_3$
3. Option C: $HClO_4$
4. Option D: $H_2SO_3$
The answer and explanation for this question are in NEET MIND Premium.
Question 16 (NEET 2013, Q62)
Chemical Bonding and Molecular StructureMedium
Which of the following is paramagnetic?
1. Option A: CO
2. Option B: $O_2^{-}$
3. Option C: $CN^{-}$
4. Option D: $NO^{+}$
The answer and explanation for this question are in NEET MIND Premium.
Question 17 (NEET 2013, Q63)
Chemical Bonding and Molecular StructureMedium
Which of the following structure is similar to graphite?
1. Option A: BN
2. Option B: B
3. Option C: $B_4C$
4. Option D: $B_2H_6$
The answer and explanation for this question are in NEET MIND Premium.
Question 18 (NEET 2013, Q64)
The d- and f-Block ElementsEasy
The basic structural unit of silicates is
1. Option A: $SiO^{-}$
2. Option B: $SiO_4^{4-}$
3. Option C: $SiO_3^{2-}$
4. Option D: $SiO_4^{2-}$
The answer and explanation for this question are in NEET MIND Premium.
Question 19 (NEET 2013, Q65)
Aldehydes, Ketones and Carboxylic AcidsMedium
Reaction by which benzaldehyde cannot be prepared is
1. Option A: Option 1
2. Option B: Option 2
3. Option C: Option 3
4. Option D: Option 4
The answer and explanation for this question are in NEET MIND Premium.
Question 20 (NEET 2013, Q66)
The d- and f-Block ElementsMedium
Which of the following does not give oxygen on heating?
1. Option A: $KClO_3$
2. Option B: $Zn(ClO_3)_2$
3. Option C: $K_2Cr_2O_7$
4. Option D: $(NH_4)_2Cr_2O_7$
The answer and explanation for this question are in NEET MIND Premium.
Question 21 (NEET 2013, Q67)
The d- and f-Block ElementsMedium
Which of the following lanthanoid ions is diamagnetic? (Atomic numbers: Ce = 58, Sm = 62, Eu = 63, Yb = 70)
1. Option A: $Ce^{2+}$
2. Option B: $Sm^{2+}$
3. Option C: $Eu^{2+}$
4. Option D: $Yb^{2+}$
The answer and explanation for this question are in NEET MIND Premium.
Question 22 (NEET 2013, Q68)
General Principles And Processes Of Isolation Of ElementsMedium
Identify the correct order of solubility in aqueous medium
1. Option A: $CuS > ZnS > Na_2S$
2. Option B: $ZnS > Na_2S > CuS$
3. Option C: $Na_2S > CuS > ZnS$
4. Option D: $Na_2S > ZnS > CuS$
Show answer & explanationHide answer & explanation
Correct answer: (D) $Na_2S > ZnS > CuS$
Explanation
Solubility order in aqueous medium: $Na_2S > ZnS > CuS$
Question 23 (NEET 2013, Q69)
Chemical Bonding and Molecular StructureMedium
$XeF_2$ is isostructural with
1. Option A: $TeF_2$
2. Option B: $ICl_2^-$
3. Option C: $SbCl_3$
4. Option D: $BaCl_2$
The answer and explanation for this question are in NEET MIND Premium.
Question 24 (NEET 2013, Q70)
Coordination CompoundsHard
An excess of $AgNO_3$ is added to $100\,mL$ of a $0.01\,M$ solution of dichlorotetraaquachromium(III) chloride. The number of moles of $AgCl$ precipitated would be
1. Option A: 0.001
2. Option B: 0.002
3. Option C: 0.003
4. Option D: 0.01
The answer and explanation for this question are in NEET MIND Premium.
Question 25 (NEET 2013, Q71)
Chemical Bonding and Molecular StructureEasy
Which of these is least likely to act as a Lewis base?
1. Option A: CO
2. Option B: $F^-$
3. Option C: $BF_3$
4. Option D: $PF_3$
The answer and explanation for this question are in NEET MIND Premium.
Question 26 (NEET 2013, Q72)
The d- and f-Block ElementsMedium
$KMnO_4$ can be prepared from $K_2MnO_4$ as per the reaction: $3MnO_4^{2-}+2H_2O \rightleftharpoons 2MnO_4^-+MnO_2+4OH^-$ The reaction can go to completion by removing OH⁻ ions by adding
1. Option A: HCl
2. Option B: KOH
3. Option C: $CO_2$
4. Option D: $SO_2$
The answer and explanation for this question are in NEET MIND Premium.
Question 27 (NEET 2013, Q73)
Chemical Bonding and Molecular StructureEasy
Which of the following is electron-deficient?
1. Option A: $(CH_3)_2$
2. Option B: $(SiH_3)_2$
3. Option C: $(BH_3)_2$
4. Option D: $PH_3$
The answer and explanation for this question are in NEET MIND Premium.
Question 28 (NEET 2013, Q74)
Organic Chemistry: Some Basic Principles and TechniquesHard
Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is
1. Option A: Option (1)
2. Option B: Option (2)
3. Option C: Option (3)
4. Option D: Option (4)
The answer and explanation for this question are in NEET MIND Premium.
Question 29 (NEET 2013, Q75)
PolymersMedium
Which of these is not a monomer for a high molecular mass silicone polymer?
1. Option A: $MeSiCl_3$
2. Option B: $Me_2SiCl_2$
3. Option C: $Me_3SiCl$
4. Option D: $PhSiCl_3$
Show answer & explanationHide answer & explanation
Correct answer: (C) $Me_3SiCl$
Explanation
$Me_3SiCl$ is monofunctional and acts as a chain terminator, so it does not form high molecular mass silicone polymer.
Question 30 (NEET 2013, Q76)
Solid StateEasy
Which of the following statements about the interstitial compounds is incorrect?
1. Option A: They retain metallic conductivity
2. Option B: They are chemically reactive
3. Option C: They are much harder than the pure metal
4. Option D: They have higher melting points than the pure metal
Show answer & explanationHide answer & explanation
Correct answer: (B) They are chemically reactive
Explanation
Interstitial compounds are generally hard, high-melting and retain metallic conductivity, but are usually chemically inert rather than highly reactive.
Question 31 (NEET 2013, Q77)
Chemical Bonding and Molecular StructureEasy
Which one of the following molecules contains no $\pi$ bond?
1. Option A: $CO_2$
2. Option B: $H_2O$
3. Option C: $SO_2$
4. Option D: $NO_2$
The answer and explanation for this question are in NEET MIND Premium.
Question 32 (NEET 2013, Q78)
Chemistry In Everyday LifeMedium
Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following statements is not true
1. Option A: A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant
2. Option B: Chlorine and iodine are used as strong disinfectants
3. Option C: Dilute solutions of boric acid and hydrogen peroxide are strong antiseptics
4. Option D: Disinfectants harm the living tissues
Show answer & explanationHide answer & explanation
Correct answer: (C) Dilute solutions of boric acid and hydrogen peroxide are strong antiseptics
Explanation
Dilute boric acid and hydrogen peroxide are mild antiseptics, not strong antiseptics.
Question 33 (NEET 2013, Q79)
Alcohols, Phenols and EthersHard
Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated HI?
1. Option A: Option 1
2. Option B: Option 2
3. Option C: Option 3
4. Option D: Option 4
The answer and explanation for this question are in NEET MIND Premium.
Question 34 (NEET 2013, Q80)
PolymersEasy
Nylon is an example of
1. Option A: Polyester
2. Option B: Polysaccharide
3. Option C: Polyamide
4. Option D: Polythene
Show answer & explanationHide answer & explanation
Correct answer: (C) Polyamide
Explanation
Nylon contains repeating amide linkage $(-CONH-)$ , hence it is a polyamide.
Question 35 (NEET 2013, Q81)
Organic Chemistry: Some Basic Principles and TechniquesMedium
The structure of isobutyl group in an organic compound is
1. Option A: Option 1
2. Option B: Option 2
3. Option C: Option 3
4. Option D: Option 4
The answer and explanation for this question are in NEET MIND Premium.
Question 36 (NEET 2013, Q82)
HydrocarbonsMedium
Nitrobenzene on reaction with concentrated $HNO_3/H_2SO_4$ at $80–100^\circ C$ forms which one of the following products?
1. Option A: 1,2-Dinitrobenzene
2. Option B: 1,3-Dinitrobenzene
3. Option C: 1,4-Dinitrobenzene
4. Option D: 1,2,4-Trinitrobenzene
The answer and explanation for this question are in NEET MIND Premium.
Question 37 (NEET 2013, Q83)
HydrocarbonsMedium
Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?
1. Option A: $-C\equiv N$
2. Option B: $-SO_3H$
3. Option C: $-COOH$
4. Option D: $-NO_2$
The answer and explanation for this question are in NEET MIND Premium.
Question 38 (NEET 2013, Q84)
SolutionsEasy
$6.02 \times 10^{20}$ molecules of urea are present in $100\,mL$ of its solution. The concentration of solution is
1. Option A: $0.02\,M$
2. Option B: $0.01\,M$
3. Option C: $0.001\,M$
4. Option D: $0.1\,M$
The answer and explanation for this question are in NEET MIND Premium.
Question 39 (NEET 2013, Q85)
Chemical Bonding and Molecular StructureEasy
Which of the following is a polar molecule?
1. Option A: $BF_3$
2. Option B: $SF_4$
3. Option C: $SiF_4$
4. Option D: $XeF_4$
The answer and explanation for this question are in NEET MIND Premium.
Question 40 (NEET 2013, Q86)
Haloalkanes and HaloarenesMedium
Which is the monomer of neoprene?
1. Option A: Option 1
2. Option B: Option 2
3. Option C: Option 3
4. Option D: Option 4
The answer and explanation for this question are in NEET MIND Premium.
Question 41 (NEET 2013, Q87)
AminesMedium
In the given reaction, Identify $A$ .
1. Option A: $HgSO_4/H_2SO_4$
2. Option B: $Cu_2Cl_2$
3. Option C: $H_3PO_2$ and $H_2O$
4. Option D: $H^+/H_2O$
The answer and explanation for this question are in NEET MIND Premium.
Question 42 (NEET 2013, Q88)
Chemical Bonding and Molecular StructureMedium
The radical $C_6H_5CH_2\cdot$ is aromatic because it has
1. Option A: 6 p-orbitals and 6 unpaired electrons
2. Option B: 7 p-orbitals and 6 unpaired electrons
3. Option C: 7 p-orbitals and 7 unpaired electrons
4. Option D: 6 p-orbitals and 7 unpaired electrons
The answer and explanation for this question are in NEET MIND Premium.
Question 43 (NEET 2013, Q89)
Organic Chemistry: Some Basic Principles and TechniquesHard
The order of stability of the following tautomeric compounds is
1. Option A: I > II > III
2. Option B: III > II > I
3. Option C: II > I > III
4. Option D: II > III > I
The answer and explanation for this question are in NEET MIND Premium.
Question 44 (NEET 2013, Q90)
HydrocarbonsMedium
Which of the following compounds will not undergo Friedel-Crafts reaction easily?
1. Option A: Cumene
2. Option B: Xylene
3. Option C: Nitrobenzene
4. Option D: Toluene
The answer and explanation for this question are in NEET MIND Premium.

Practise NEET 2013 Chemistry with your progress saved

A free account gives you 15 PYQs in every chapter with explanations, and keeps every mistake for revision.

Start practising free

NEET 2013 Chemistry Questions with Solutions

Chapter-wise: NEET 2013 Chemistry

All 44 NEET 2013 Chemistry questions

NEET Chemistry questions in other years

Practise NEET 2013 Chemistry with your progress saved