P-Block Elements PYQs

Identify the incorrect statement from the following:

Identify the incorrect statement from the following:

Given below are two statements : Statement I : Like nitrogen that can form ammonia, arsenic can form arsine. Statement II : Antimony cannot form antimony pentoxide. In the light of the above statements, choose the most appropriate answer from the options given below.

The products A and B obtained in the following reactions, respectively, are: 3ROH + PCl₃ → 3RCl + A ROH + PCl₅ → RCl + HCl + B

Match List-I with List-II. Choose the correct answer from the options given below:

Match List-I with List-II : Choose the correct answer from the options given below :

Given below are two statements: one is labelled as Assertion (A) and the other as Reason (R). Assertion (A): ICl is more reactive than I₂. Reason (R): I–Cl bond is weaker than I–I bond. Choose the most appropriate answer.

The structures of beryllium chloride in solid state and vapour phase, are:

Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.

Which of the following oxoacid of sulphur has – O – O – linkage?

HCl was passed through a solution of CaCl₂, MgCl₂ and NaCl, compound(s) crystallise(s)?

Which of the following is not correct about carbon monoxide ?

Crude sodium chloride obtained by crystallisation of brine solution does not contain:

A compound 'X' upon reaction with $H_2O$ produces a colourless gas 'Y' with rotten fish smell. Gas 'Y' is absorbed in a solution of $CuSO_4$ to give $Cu_3P_2$ as one of the products. Predict the compound 'X'.

Which of the following oxoacids of phosphorus has strongest reducing property?

Identify the correct formula of oleum from the following.

Which one of the following elements is unable to form MF₆³⁻ ion?

Which of the following statements is not true for halogens?

In which pair of ions both the species contain S–S bond?

It is because of inability of ns² electrons of the valence shell to participate in bonding that

Strong reducing behaviour of $\mathrm{H_3PO_2}$ is due to:

The stability of +1 oxidation state among Al, Ga, In and Tl increases in the sequence:

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

The basic structural unit of silicates is

Which of the following does not give oxygen on heating?

In which of the following arrangements the given sequence is not strictly according to the property indicated against it?

Which of the following statements is incorrect?

Which of the following oxide is amphoteric?

The compound $A$ on heating gives a colourless gas and a residue that is dissolved in water to obtain $B$. Excess of $CO_2$ is bubbled through aqueous solution of $B$, $C$ is formed which is recovered in the solid form. Solid $C$ on gentle heating gives back $A$. The compound $A$ is :

The stability of $+1$ oxidation state increases in the sequence:

Why is NH₃ more soluble in water than PH₃?

Why is F₂ more reactive than Cl₂?

Why do PO₄³⁻ ions exist whereas NO₄³⁻ ions do not?

Al₂O₃ can be converted to anhydrous AlCl₃ by heating:

Which of the following is the most basic oxide?

Which one of the following orders is not in accordance with the property stated against it?