Science (English Medium) Class 12 - CBSE Question Bank Solutions for Chemistry

Out of (CH₃)₃ C-Br and (CH₃)₃ C-I, which one is more reactive towards S_N1 and why? 

How do you convert the following:

Ethanol to Propan-2-ol

Write the mechanism of the following reaction : 

\[\ce{C2H5OH->[H2SO4][443K]CH2=CH2 + H2O}\]

What type of detergent are used in toothpastes?

Define the following term with a suitable example in each:
Cationic detergents

Give simple chemical test to distinguish between Ethanol and Phenol.

Solve the following question.
A steady current of 2 amperes was passed through two electrolytic cells X and Y connected in series containing electrolytes FeSO₄ and ZnSO₄ until 2.8 g of Fe deposited at the cathode of cell X. How long did the current flow? Calculate the mass of Zn deposited at the cathode of cell Y.
(Molar mass : Fe = 56 g mol^–1, Zn = 65.3 g mol^–1, 1F = 96500 C mol^–1)

Which one of the following is incorrect for an ideal solution?

Packing efficiency for simple cubic structure is ____________.

For ideal solution the enthalpy of mixing of the pure components to form the solution is ____________.

For ideal solution the volume of mixing of the pure components to form the solution is ____________.

The rate at which a solid dissolves in liquid does not depend on ____________.

Electrolytic cell uses electrical energy to bring about ____________.

According to Faraday’s First Law of Electrolysis, the amount of chemical reaction which occurs at any electrode during electrolysis by a current is proportional to the ____________.

Which metal is also found in sea beds?

Hinsberg’s reagent reacts with primary and secondary amines to form sulphonamides. This reagent is also known as:

p-toluenesulphonyl chloride does not react with ____________.

p-toluenesulphonyl chloride is used to:

Honey contains primarily ____________.

Among the following the one which reacts most readily with ethanol is: