Class 10 Chemistry MCQs – Practice Test 1 (Chapter 10)

The Atmosphere MCQs with Answers PDF Download – Test 1

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The Atmosphere MCQs – Practice Test 1 PDF Download

MCQ 1: Solvents used for cleaning electronic circuit boards are:

chlorofluorocarbons
carbons
fluorides
grease

MCQ 2: Percentage of neon in the air is:

0.0018
0.0019
0.002
0.0021

MCQ 3: At every 1 km increase in altitude, the air gets about:

10 °C cooler
6.5 °C hotter
6.5 °C cooler
20 °C cooler

MCQ 4: The pH of acid rain is:

more than 5.6
less than 5.6
10
7

MCQ 5: The atmosphere is divided in to:

2 layers
3 layers
1 layer
4 layers

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