Question

(a) Differentiate between Kharif and Rabi crops.

(b) Describe the reaction ;-

Magnesium + Copper Sulphate---------.> Magnesium Sulphate + Copper in terms of the

reactivity series of metals.

OR

Mention the main uses of the following:

 Sulphur

 Aluminium

 Hydrogen

(c) State Pascal’s law. Give a simple experiment to demonstrate this law.

OR

In a game of tug- of-war, three girls of Team A pull the rope with the forces of 80N, 100N

and 120N.

In the Team B, three girls pull the rope with the forces of 85N, 105N and 125N. What is the

resultant force? Which team is the winner?​

Answer 1

Answer:

some uses of sulphur - to manufacture automobiles batteries and manufacturing detergent

Answer 2

Answer:

A) Kharif crops are the one which grows in monsoon season.

Example: Rice, Soyabean, etc.

Rabi crops are the one which grows in winter season.

Example: Maize, Wheat, etc.