JEE Main 2021 (Online) 25th February Evening Shift | Hydrogen Question 43 | Chemistry

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JEE Main 2021 (Online) 25th February Evening Shift

MCQ (Single Correct Answer)

-1

Water does not produce CO on reacting with :

CH₄

C₃H₈

CO₂

JEE Main 2021 (Online) 24th February Morning Slot

MCQ (Single Correct Answer)

-1

(A) HOCI + H₂O₂ → H₃O⁺ + Cl^- + O₂

(B) I₂ + H₂O₂ + 2OH^- → 2I^- + 2H₂O + O₂

Choose the correct option.

H₂O₂ acts as reducing and oxidising agent respectively in equations (A) and (B).

H₂O₂ act as oxidizing and reducing agent respectively in equations (A) and (B).

H₂O₂ acts as oxidising agent in equations (A) and (B).

H₂O₂ acts as reducing agent in equations (A) and (B).

JEE Main 2020 (Online) 6th September Evening Slot

MCQ (Single Correct Answer)

-1

Dihydrogen of high purity (> 99.95%) is obtained through :

the electrolysis of acidified water using Pt electrodes

the electrolysis of warm Ba(OH)₂ solution using Ni electrodes

the electrolysis of brine solution

the reaction of Zn with dilute HCl

JEE Main 2020 (Online) 5th September Evening Slot

MCQ (Single Correct Answer)

-1

Hydrogen peroxide, in the pure state, is :

Linear and blue in color

Linear and almost colorless

Non-planar and almost colorless

Planar and bluein color

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