Chemistry

Given below are two statements:

Statement I : H2O2 can act as both oxidizing and reducing agent in basic medium.

Statement II: In the hydrogen economy, the energy is transmitted in the form of dihydrogen.

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

The process that involves the removal of sulphur from the ores is:

A group 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is:

Given below are two statements:

Statement I : Both CaCl2.6H2O and MgCl2.8H2O undergo dehydration on heating.

Statement II : BeO is amphoteric whereas the oxides of other elements in the same

group are acidic.

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

Which of the following reaction DOES NOT involve Hoffmann bromamide degradation?

In the above chemical reaction, intermediate "X" and reagent / condition "A" are:

The type of pollution that gets increased during the day time and in the presence of O3 is:

In chromatography technique, the purification of compound is independent of:

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: The H-O-H bond angle in water molecule is 104.5°.
Reason R: The lone pair- lone pair repulsion of electrons is higher than the bond pair- bond pair repulsion.
In the light of the above statements, choose the correct answer from the options given below: