Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 4

EASY

10th CBSE

IMPORTANT

Earn 100

When lead nitrate and potassium iodide are mixed together a yellow precipitate is formed. Name this precipitate and write its formula.

Important Questions on Chemical Reactions and Equations

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 5

Write a balanced chemical equation which represents thermal decomposition of ferrous sulphate.

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 6

Name the oxidizing agent in the reaction

Zn (s) + {Cu}^{2 +} (aq) \to {Zn}^{2 +} (aq) + Cu (s)

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 7

Samples of silver nitrate are kept in coloured bottles. State a reason.

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 8

A solution of copper sulphate cannot be stored in an aluminum vessel. Give a reason.

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 9

Name the process responsible for the deposition of undesirable brown mass on the surface of iron nails in the presence of moist air.

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 10

Name the process that causes unpleasant smell and unpleasant taste in fatty foods.

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 11

Balance the following reaction.

$Zn + H_{2} {SO}_{4} \to {ZnSO}_{4} + H_{2}$

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 1 - Chemical Reactions and Equations>SUMMATIVE ASSESSMENT QUESTIONS (As per the Guidelines of the CBSE)>Q 11

Which one of the two equations does not represent a real reaction though both are balanced?

(i) $Zn + H_{2} {SO}_{4} \to {ZnSO}_{4} + H_{2}$

(ii) $Cu + H_{2} {SO}_{4} \to {CuSO}_{4} + H_{2}$