What is the basicity of ${\mathrm{H}}_3{\mathrm{PO}}_3$ and ${\mathrm{H}}_3{\mathrm{BO}}_3$.

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 1>Q 11

What colours are given by phenolphthalein in an acidic and a basic solution?

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 1>Q 12

A few drops of methyl orange are added to dilute$\mathrm{HCl}$. What colour do you expect to have?

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 1>Q 13

Name any two natural indicators.

HARD

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 1>Q 14

How would you obtain $\mathrm{HCl}$ from $\mathrm{NaCl}$? Write the equation only.

HARD

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 1>Q 15

Is ${\mathrm{BF}}_3$ an Arrhenius acid.

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 1>Q 16

Which gas is liberated when zinc is treated with dil. ${\mathrm{H}}_2{\mathrm{SO}}_4$?

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 1>Q 17

Which gas is liberated on treating marble with dilute $\mathrm{HCl}$?

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 2 - Acids, Bases and Salts>Exercise 1>Q 18

Which chemical species are formed when an acid neutralises a base?