CUET (UG) entrance exam Question Bank Solutions for Chemistry

At equilibrium the rate of dissolution of a solid solute in a volatile liquid solvent is ______.

Which of the following pairs can be distinguished by Lucas test?

Identify the following named reaction:

\[\ce{C2H5Br ->[Na/Dry ether] C2H5 - C2H5}\]

Of the following properties about thiosulphate, which one is not applicable?

Buna-N is a co-polymer of 1, 3-butadiene and \[\ce{\underset{-}{X}}\] .What is \[\ce{\underset{-}{X}}\]?

Reaction of Grignard reagent with aromatic aldehyde and subsequent aqueous treatment produces

Rayon is:

A functional isomer of 1-butyne is

Which of the statements about Grignard reagent is false?

Pb and Sn are extracted from their chief are by:-

CN^– solution is used in the extraction of which metal?

Colemanite is:-

Sulphide ore of the metal are usually concentrated by froth floatation process. Which of the following sulphide ore offers an exception and is concentrated by chemical leaching?

Heating byrites to remove sulphtir is called

The diamagnetic species is:-

\[\ce{R - CH2 - CCl2 - R ->[Peagent] R - C ≅ C - R}\]. The reagent is:-

 A product (1) of above reaction is:-

Grignard reagent shows addition on

Given below are two statements, one is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A): A solution of table salt in a glass of water is homogeneous.

Reason (R): A solution having same composition throughout is heterogeneous.

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

An element has a cubic structure with a cell edge of 288 pm. The density of the element is 7.2 g cm^–3. 208 g of the element has 24.16 × 10²³ numbers of atoms. The unit cell of this cubic structure is