Chemistry NCERT Exemplar Solutions Class 12th Chapter Ten

Which of the following sets are correct regarding polymer?

(A) Copolymer: Buna-S

(B) Condensation polymer: Nylon-6,6

(C) Fibres: Nylon-6,6

(D) Thermosetting polymer: Terylene

(E) Homopolymer: Buna-N

Choose the correct answer form given options below

The correct order of melting point is

In the given conversion the compound A is:

A 100 mL solution of CH₃CH₂MgBr on treatment with methanol produces 2.24 mL of a gas at STP. The weight of gas produced is __________ mg. [nearest integer]

The number of non-ionisable protons present in the product B obtained from the following reaction is______________.

C₂H₅OH + PCl₃ ® C₂H₅Cl + A

A + PCl₃ ® B

Given below are two statements : one is labeled as Assertion A and the other is labeled as Reason R.

Assertion A: LiF is sparingly soluble in wate.

Reason R: The ionic radius of Li⁺ ion is smallest among its group members, hence has least hydration enthalpy.

In the light of the above statements, choose the most appropriate answer from the options given below.

The metal that has very low melting point and its periodic position is closer to a metalloid is

Identify the major product formed in the following sequence of reactions:

Which one of the following compounds in inactive towards S_N1 reaction?