${\rm{P}}{{\rm{b}}_3}{{\rm{O}}_4}$

Conversion of white to grey tin

Conversion of white tetrahedral tin to white rhombohedral tin

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JEE • CHEMISTRY • 14 TH GROUP ELEMENTS (P-BLOCK)

14 th group elements (p-block) practice · Hard

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Practice format and chapter quiz

These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.

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1 Hard

1 of 10

Remembering +4 | -1

Newton’s alloy contains :

View answer and explanation

Correct option: A

Bi, Sn, Pb

Option A (Bi, Sn, Pb) is correct because Newton's alloy is a fusible alloy composed of bismuth (Bi), tin (Sn), and lead (Pb).

2 Hard

2 of 10

Analyzing +4 | -1

Assertion:

{SiF}_6^{2-}

is known but

{SiCl}_6^{2-}

is not

Reason: Size of fluorine is small and its lone pair of electrons interacts with

d

-orbitals of

Si

strongly.

View answer and explanation

Correct option: A

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Option A (If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion) is correct because the small size of fluorine allows for effective interaction of its lone pairs with the d-orbitals of silicon, stabilizing the

SiF_6^{2-}

ion, while the larger size of chlorine prevents this in

SiCl_6^{2-}

3 Hard

3 of 10

Remembering +4 | -1

Plumbo-solvency means dissolution of lead in:

View answer and explanation

Correct option: C

Ordinary water

Option C (Ordinary water) is correct because plumbo-solvency refers to the dissolution of lead in ordinary water, especially soft or acidic water.

4 Hard

4 of 10

Remembering +4 | -1

Which of the following imparts green colour to flame:

View answer and explanation

Correct option: A

\mathrm{B}{\left( {\mathrm{OMe}} \right)_3}

Option A (

\mathrm{B}{\left( {\mathrm{OMe}} \right)_3}

) is correct because boron compounds, when heated, form

B_2O_3

which imparts a green color to the flame.

5 Hard

5 of 10

Analyzing +4 | -1

Assertion: Surface of diamond is generally impure.

Reason: It has dangling bonds.

View answer and explanation

Correct option: A

If both Assertion & Reason are True & the Reason is correct explanation of the Assertion

Option A (If both Assertion & Reason are True & the Reason is correct explanation of the Assertion) is correct because the surface of diamond is generally impure due to the presence of dangling bonds.

6 Hard

6 of 10

Remembering +4 | -1

Minium is:

View answer and explanation

Correct option: B

\mathrm{P}{\mathrm{b}_3}{\mathrm{O}_4}

Option B (

\mathrm{P}{\mathrm{b}_3}{\mathrm{O}_4}

) is correct because Minium is the common name for lead tetroxide, which has the chemical formula

\mathrm{P}{\mathrm{b}_3}{\mathrm{O}_4}

7 Hard

7 of 10

Remembering +4 | -1

The composition of the common glass is

View answer and explanation

Correct option: D

\mathrm{N}{\mathrm{a}_2}\mathrm{O}\mathrm{.CaO}.6\mathrm{Si}{\mathrm{O}_2}

Option D (

\mathrm{N}{\mathrm{a}_2}\mathrm{O}\mathrm{.CaO}.6\mathrm{Si}{\mathrm{O}_2}

) is correct because it represents the correct composition of common soda-lime glass.

8 Hard

8 of 10

Remembering +4 | -1

Silicones are formed by hydrolysis of

View answer and explanation

Correct option: D

Chlorosilanes

Option D (Chlorosilanes) is correct because silicones are polymers formed by the hydrolysis and subsequent polymerization of chlorosilanes.

9 Hard

9 of 10

Remembering +4 | -1

Which gas is used in airated water?

View answer and explanation

Correct option: A

\mathrm{C}{\mathrm{O}_2}

Option A (

\mathrm{C}{\mathrm{O}_2}

) is correct because carbon dioxide gas is commonly used to create the fizz in aerated water.

10 Hard

10 of 10

Remembering +4 | -1

Tin cry refers to :

View answer and explanation

Correct option: D

Emission of sound while bending a tin rod

Option D (Emission of sound while bending a tin rod) is correct because tin cry refers to the characteristic sound produced when a tin rod is bent.

Revision notes and key takeaways

Review 14 TH GROUP ELEMENTS (P-BLOCK) in your textbook or class notes, then use this set to check your understanding.

Key Takeaways

✓ This set contains 10 single-correct-answer MCQs on 14 TH GROUP ELEMENTS (P-BLOCK).
✓ Try each question before opening its answer. Read the explanation where one is available.
✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.

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