${\mathrm{Mn}}_2{\mathrm{O}}_7$ is an acidic oxide.

Important Questions on Acids, Bases and Salts

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 7>Q 19

${\mathrm{H}}^{+}$ concentration decreases, $\mathrm{pH}$ increases.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 7>Q 23

Oxalic acid is present in tomatoes.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 7>Q 26

Rock salt is mined just like coal.

HARD

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 7>Q 29

Only alkali and alkaline earth metals form hydrogen carbonates.

HARD

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 7>Q 30

Liquid ${\mathrm{H}}_2$ is used as rocket fuels.

HARD

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 8>Q 3

Methyl orange an indicator is itself a weak _____.

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 8>Q 5

Turmeric gives _____ colour with lemon juice.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 8>Q 6

Citrous fruits contain _____ acid.