Chemistry Practice Question and Answer
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Q:Read the following questions carefully and answer them.
The advantage of detergents over soaps is
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63aaa809afa10611461dc17d- 1Detergents are soluble in waterfalse
- 2Detergents could not give much latherfalse
- 3Detergents give lather even with hard watertrue
- 4Soaps give lather with only soft waterfalse
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Answer : 3. "Detergents give lather even with hard water "
Q: What is the common name of CaoCl2?
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609e4cd76397877f31963e9f- 1Washing Sodafalse
- 2Bleaching Powdertrue
- 3Baking Powderfalse
- 4Baking Sodafalse
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Answer : 2. "Bleaching Powder "
Q: What is the function of a catalyst in a chemical reaction?
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63c921fdb338bc336f0ddb80- 1Decrease rate constant of reactionfalse
- 2Increases activation energy of reactionfalse
- 3Reduces enthalpy of reactionfalse
- 4Does not affect the equilibrium constant of reactiontrue
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Answer : 4. "Does not affect the equilibrium constant of reaction"
Q: Which metal does not react with oxygen even at high temperature?
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612759fb302e8b067c99a4be- 1Ironfalse
- 2goldtrue
- 3Potassiumfalse
- 4Aluminumfalse
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Answer : 2. "gold"
Q: Which of the following process is used to do maximum work done on the ideal gas if the gas is compressed to half of its initial volume?
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63c920deb338bc336f0dd8d6- 1Isothermalfalse
- 2Isochoricfalse
- 3Isobaricfalse
- 4Adiabatictrue
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Answer : 4. "Adiabatic"
Q: Which gas is produced when the dilute acids are reacted with metals?
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5f6c2b8fec13dd7480fadce1- 1Hydrogentrue
- 2nitrogenfalse
- 3Carbon dioxidefalse
- 4Oxygenfalse
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Answer : 1. "Hydrogen"
Q: Chemically " Plaster of Paris " is –
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5ef2f5d481a47f2e7aec098b- 1Calcium oxidefalse
- 2Calcium oxalatefalse
- 3Calcium Sulphatetrue
- 4Calcium Carbonatefalse
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Answer : 3. "Calcium Sulphate "
Q: The tendency to give up electrons is called-
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5f745960a921aa16e68b8a63- 1Oxidationtrue
- 2Reductionfalse
- 3Catalysisfalse
- 4Motivationfalse
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Answer : 1. "Oxidation "
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