Find the odd one out: HCl, H2SO4, NaOH, HNO3 MCQ with Answer and Explanation

Find the odd one out: HCl, H2SO4, NaOH, HNO3
A. NaOH
B. H2SO4
C. HNO3
D. HCl
Answer: Option A
Solution (By JKSSB Mock Tests)
HCl, H2SO4 and HNO3 are acids; NaOH is a base.

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Practice More Classification (Odd One Out) Questions

Question #1
Find the odd one out: Jim Corbett, Kaziranga, Ranthambore, Varanasi
A. Varanasi
B. Ranthambore
C. Kaziranga
D. Jim Corbett

Correct Answer: Option A


Explanation:
Jim Corbett, Kaziranga and Ranthambore are national parks; Varanasi is a city.

This question belongs to: Reasoning Classification (Odd One Out)
Question #2
Find the odd one out: NaOH, KOH, Ca(OH)2, HCl
A. Ca(OH)2
B. HCl
C. KOH
D. NaOH

Correct Answer: Option B


Explanation:
NaOH, KOH and Ca(OH)2 are bases; HCl is an acid.

This question belongs to: Reasoning Classification (Odd One Out)
Question #3
Find the odd one out: Q, S, U, X
A. U
B. X
C. Q
D. S

Correct Answer: Option B


Explanation:
Q=17, S=19 and U=21 are odd positions with a gap of 2; X=24 is an even position.

This question belongs to: Reasoning Classification (Odd One Out)