Lakhmir Singh and Manjit Kaur Solutions for Chapter: Air Around Us, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)

Author:Lakhmir Singh & Manjit Kaur

Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Air Around Us, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)

Attempt the free practice questions on Chapter 15: Air Around Us, Exercise 5: Questions Based on High Order Thinking Skills (HOTS) with hints and solutions to strengthen your understanding. Awareness Science For Sixth Class solutions are prepared by Experienced Embibe Experts.

Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Air Around Us, Exercise 5: Questions Based on High Order Thinking Skills (HOTS) with Hints & Solutions

MEDIUM
6th CBSE
IMPORTANT

The two gases A and B together make up about 99% of the air. Both these gases are colourless, tasteless and odourless. Gas A is very reactive whereas gas B is very unreactive. Gas A is necessary for the process of respiration in plants and animals whereas gas B is required by the plants to make their proteins.

What is the percentage of (i) gas A and (ii) gas B, in the air?

MEDIUM
6th CBSE
IMPORTANT

The two gases A and B together make up about 99% of the air. Both these gases are colourless, tasteless and odourless. Gas A is very reactive whereas gas B is very unreactive. Gas A is necessary for the process of respiration in plants and animals whereas gas B is required by the plants to make their proteins.

Which gas, A or B, neither burns nor supports the process of combustion?

MEDIUM
6th CBSE
IMPORTANT

The two gases A and B together make up about 99% of the air. Both these gases are colourless, tasteless and odourless. Gas A is very reactive whereas gas B is very unreactive. Gas A is necessary for the process of respiration in plants and animals whereas gas B is required by the plants to make their proteins.

Which gas, A or B is filled in plastic bags containing potato chips to prevent their spoilage?

HARD
6th CBSE
IMPORTANT

In an activity to study the composition of air, a gas jar stand is placed in a trough of water in which a substance P has been dissolved. A burning candle is fixed on the gas jar stand and gas jar is inverted over the burning candle. After some time, the burning candle gets extinguished and water from the trough rises to fill one-fifth of the inverted jar. The water rises in the gas jar because the product Q formed by the burning candle in the air gets dissolved in a solution of P in water. A gas R is left behind in the inverted gas jar. What are P, Q and R?

 

MEDIUM
6th CBSE
IMPORTANT

Name two processes which consume oxygen from the air.

MEDIUM
6th CBSE
IMPORTANT

Name one process which puts back oxygen into air.

EASY
6th CBSE
IMPORTANT

Name one process which removes carbon dioxide from air.

MEDIUM
6th CBSE
IMPORTANT

Name two processes which put back carbon dioxide into air.