Class -X, Online Science test
Engaging Science Quiz for Class X
Test your knowledge with our interactive online science quiz designed specifically for Class X students. This quiz covers a range of important topics in chemistry and biology, ensuring a comprehensive review of key concepts.
- 10 thought-provoking multiple-choice questions
- Immediate feedback on your responses
- Perfect for revision and self-assessment
1.Respiration is a chemical change because
Energy evolved
Energy absorbed
There is decrease in temperature
There is increase in temperature
2. The term rancidity represents
Acid rain
Oxidation of fatty food
Rottening of fruit
Fading of the colored clothes in the sun
3.Which of the following process doesn't produce decomposition reaction ?
Electrolysis
Exposure to light
Thermal
Distillation
4. Choose the combination reaction :
Electric current is passed through water
Hydrogen burns in oxygen
Hydrogen peroxide is exposed to sunlight
Digestion of food in our body
5. Chemically the rust is
Hydrated ferrous oxide
Hydrated ferric oxide
Only ferric oxide
Ferrous sulphate
Plaster of Paris is made from
Lime stone
Slakedlime
Quicklime
Gypsum
7.The aqueous solution of sodium hydrogencarbonate is
Strongly basic
Mildly basic
Neutral
Mildly acidic
8.Tooth enamel contains
Calcium carbonate
Calcium phosphate
Calcium sulphate
Calcium chloride
9.A solution turns red litmus blue, its pH would be
3
5
7
10
10. Select the mineral acid among the following :
Hydrochloric acid
Acetic acid
Citric acid
Lactic acid
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