This chapter is currently out of syllabus
1
JEE Main 2022 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two statements.

Statement I : Hydrogen peroxide can act as an oxidizing agent in both acidic and basic conditions.

Statement II : Density of hydrogen peroxide at $$298 \mathrm{~K}$$ is lower than that of $$\mathrm{D}_{2} \mathrm{O}$$.

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

A
Both Statement I and Statement II are true.
B
Both Statement I and Statement II are false.
C
Statement I is true but Statement II is false.
D
Statement I is false but Statement II is true.
2
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The products obtained from a reaction of hydrogen peroxide and acidified potassium permanganate are :
A
$$\mathrm{Mn}^{4+}, \mathrm{H}_{2} \mathrm{O}$$ only
B
$$\mathrm{Mn}^{2+}, \mathrm{H}_{2} \mathrm{O}$$ only
C
$$\mathrm{Mn}^{4+}, \mathrm{H}_{2} \mathrm{O}, \mathrm{O}_{2}$$ only
D
$$\mathrm{Mn}^{2+}, \mathrm{H}_{2} \mathrm{O}, \mathrm{O}_{2}$$ only
3
JEE Main 2022 (Online) 26th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which of the following can be used to prevent the decomposition of $$\mathrm{H}_{2} \mathrm{O}_{2}$$ ?

A
Urea
B
Formaldehyde
C
Formic acid
D
Ethanol
4
JEE Main 2022 (Online) 25th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

High purity (> 99.95%) dihydrogen is obtained by :

A
reaction of zinc with aqueous alkali.
B
electrolysis of acidified water using platinum electrodes.
C
electrolysis of warm aqueous barium hydroxide solution between nickel electrodes.
D
reaction of zinc with dilute acid.
JEE Main Subjects
EXAM MAP