Chemistry 10th Class English Medium Online Test With Answers

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Chemistry 10th Class English Medium Online Test

Sr. # Questions Answers Choice
1 The chemical used in Clark's method is: CaO slaked lime(Ca(OH)s) washing soda sodium zeolite
2 Water become hard because of: Ca+2 Mg+2 SO-24 all of these
3 The water which produces good lather with soap is called: soft water hard water heavy water typical water
4 Water molecule had a structure; non-polar polar ionic tetrahedral
5 Which process is responsible for ascending of water in roots: evaporation transpiration condensation capillary action
6 The surface tension of water is: very low moderate high zero
7 Density of water at 4°C is: 0.976 gem-3 1 gem-3 0.956 gem-3 1.1 gem-3
8 Freezing point of water is: -4°C 0°C -36°C -58°C
9 The percentage of water in human body is about: 60% 50% 70% 80%
10 Ozone id beneficial for us as it: absorbs infrared radiations absorbs ultraviolet radiation absorbs chlorofluorocarbons absorbs air pollutants
11 Normal rain water is: weakly acidic strongly acidic weakly basic strongly basic
12 Which gas like a glass wall of g green house: CO O2 CO2 N2
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