HARD
JEE Main
IMPORTANT
Earn 100

Statement I : Sodium hydride can be used as an oxidising agent.

Statement II : The lone pair of electrons on nitrogen in pyridine makes it basic.

Choose the CORRECT answer from the options given below :

50% studentsanswered this correctly

Important Questions on Hydrogen

MEDIUM
JEE Main
IMPORTANT

The correct statements about H2O2 are :

(A) used in the treatment of effluents.

(B) used as both oxidising and reducing agents.

(C) the two hydroxyl groups lie in the same plane.

(D) miscible with water.

Choose the correct answer from the options given below :

MEDIUM
JEE Main
IMPORTANT

Given below are two statements:

Statement I : H2O2 can act as both oxidising 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:

MEDIUM
JEE Main
IMPORTANT
The hardness of a water sample containing 10-MgSO4 expressed as CaCO3 equivalents (in ppm ) is . (molar mass of MgSO4 is 120.37 g/mol )
EASY
JEE Main
IMPORTANT
Identify the incorrect statement regarding heavy water:
EASY
JEE Main
IMPORTANT

The strength of 11.2 volume solution of H2O2 is

[Given that, the molar mass of H=1 g mol-1 and O=16 g mol-1]

MEDIUM
JEE Main
IMPORTANT
Hydrogen peroxide oxidises FeCN64-to FeCN63- in acidic medium, but reduces FeCN63-toFeCN64- in alkaline medium. The other products formed are, respectively