Chemistry Practice Question and Answer
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Q: Table salt gets moist during rainy season because -
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5f2cf6ad79b9e641a7606520- 1sodium chloride contains some quantity of sodium iodidefalse
- 2sodium chloride contains hygroscopic impurities like - magnesium chloridetrue
- 3sodium chloride Is hygroscopicfalse
- 4sodium chloride is deliquescentfalse
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Answer : 2. "sodium chloride contains hygroscopic impurities like - magnesium chloride "
Q: Which carbohydrate is used in silvering of mirrors?
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5f2162530d44c43edf026f1c- 1Glucosetrue
- 2Starchfalse
- 3Fructosefalse
- 4Sucrosefalse
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Answer : 1. "Glucose "
Q: Bronze is an alloy of –
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5f15567f4cff381d162659f7- 1Copper and zincfalse
- 2Copper and Leadfalse
- 3Copper and Tintrue
- 4Copper and Silverfalse
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Answer : 3. "Copper and Tin "
Q: Which of the following gases is used in cigarette lighter?
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5f155520cf79540a7533b909- 1Propanefalse
- 2Radonfalse
- 3Butanetrue
- 4Methanefalse
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Answer : 3. "Butane "
Q: The chemical name of limestone is?
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5f0eda3fb6738d790d13f5d3- 1Sodium Chloridefalse
- 2Sodium Sulphidefalse
- 3Calcium carbonatetrue
- 4Magnesium Chloridefalse
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Answer : 3. "Calcium carbonate "
Q: In atom, neutron was discovered by –
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5f0ed5dfdcdb5f61f5c4c220- 1Rutherfordfalse
- 2Newtonfalse
- 3J.J . Thomsonfalse
- 4Chadwicktrue
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Answer : 4. "Chadwick "
Q: The atoms, in which the number of Protons is same but the number of neutrons is different, are known as –
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5f0ecf31b6738d790d13d1ea- 1Isotonesfalse
- 2Isotopestrue
- 3Isobarsfalse
- 4Isomersfalse
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Answer : 2. "Isotopes"
Q: The atomic nucleus was discovered by
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5f0ecca3dcdb5f61f5c4abe9- 1Einsteinfalse
- 2Thompsonfalse
- 3Rutherfordtrue
- 4Daltonfalse
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Answer : 3. "Rutherford "
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