You are provided with aqueous solutions of three salts A , B and C . 2 ‐ 3 drops of blue litmus solution, red litmus solution and phenolphthalein were added to each of these solutions in separate experiments. The change in colour of different indicators were recorded in the following table: Sample With blue litmus solution With red litmus solution With phenolphthelein A No change Turns blue Turns pink B No change No change No change C Turns red No change No change On the basis of above observations, identify A , B and C from the following options:

A = CH 3 COONa , B = NaCl , C = FeCl 3

A = NaCl , B = CH 3 COONa , C = FeCl 3

A = FeCl 3 , B = NaCl , C = CH 3 COONa

A = FeCl 3 , B = CH 3 COONa , C = NaCl

You are provided with aqueous solutions of three salts A , B and C . 2 ‐ 3 drops of blue litmus solution, red litmus solution and phenolphthalein were added to each of these solutions in separate experiments. The change in colour of different indicators were recorded in the following table: Sample With blue litmus solution With red litmus solution With phenolphthelein A No change Turns blue Turns pink B No change No change No change C Turns red No change No change On the basis of above observations, identify A , B and C from the following options:

A = CH 3 COONa , B = NaCl , C = FeCl 3

A = NaCl , B = CH 3 COONa , C = FeCl 3

A = FeCl 3 , B = NaCl , C = CH 3 COONa

A = FeCl 3 , B = CH 3 COONa , C = NaCl

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 20 - Acids, Bases and Salts>SAT 2021>Q 5

MEDIUM

NTSE Stage II

IMPORTANT

Earn 100

Sulphur powder is heated on a spatula. A piece of both, moist blue and red litmus papers are brought one by one near the gas evolved during heating. The action of gas on the moist litmus papers will be:

50% studentsanswered this correctly

Important Questions on Acids, Bases and Salts

EASY

NTSE Stage II

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 20 - Acids, Bases and Salts>SAT 2020>Q 2

Equal volumes of solutions containing

1

mole of an acid and

1

mole of a base respectively are mixed. Which of these mixture will give

pH

more than

7

?

MEDIUM

NTSE Stage II

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 20 - Acids, Bases and Salts>SAT 2021>Q 3

You are provided with aqueous solutions of three salts $A, B$ and $C$ . $2 ‐ 3$ drops of blue litmus solution, red litmus solution and phenolphthalein were added to each of these solutions in separate experiments. The change in colour of different indicators were recorded in the following table:

Sample	With blue litmus solution	With red litmus solution	With phenolphthelein
A	No change	Turns blue	Turns pink
B	No change	No change	No change
C	Turns red	No change	No change

On the basis of above observations, identify $A, B$ and $C$ from the following options:

MEDIUM

NTSE Stage II

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 20 - Acids, Bases and Salts>SAT 2020>Q 4

If excess of

{CO}_{2}

is passed through the suspension of a compound ‘X’ in water, a compound ‘Y’ is formed. Substances ‘X’ and ‘Y’ dissolve in

H_{2} {SO}_{4}

giving white compound ‘Z’ which is insoluble in water. Identify the compounds ‘X’, ‘Y’ and ‘Z’.

MEDIUM

NTSE Stage II

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 20 - Acids, Bases and Salts>SAT 2021>Q 5

Sulphur powder is heated on a spatula. A piece of both, moist blue and red litmus papers are brought one by one near the gas evolved during heating. The action of gas on the moist litmus papers will be:

Learn and Prepare for any exam you want !

|

|

|

|

|

|

|

|