Chemistry Questions Practice Question and Answer
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Q: Which of the following is used as a lubricant in heavy machines?
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5f2cf764be9f31290fb85b15- 1Phosphorusfalse
- 2Graphitetrue
- 3Bauxitefalse
- 4Sulphurfalse
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Answer : 2. "Graphite "
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: Methyl propane is an isomer of-
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5ef96e41a26dd669b340a84f- 1n-pentanefalse
- 2n-butanetrue
- 3n-propanefalse
- 4n-hexanefalse
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Answer : 2. "n-butane"
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 is known as carbolic acid?
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5f029a3e7a5a806340b1064a- 1Phenoltrue
- 2Ethanolfalse
- 3Acetic acidfalse
- 4Oxalic acidfalse
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Answer : 1. "Phenol "
Q: The substances used for artificial rain is
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5ef1afdd7fed557ba2abd7d3- 1Silver iodidetrue
- 2Silver bromidefalse
- 3Ammonium nitratefalse
- 4All of the abovefalse
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Answer : 1. "Silver iodide "
Q: Which one of the following is not a plant product?
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5f06ea13b13c2d244adb04f1- 1Nicotinefalse
- 2Saccharintrue
- 3Caffeinefalse
- 4Piperinefalse
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Answer : 2. "Saccharin "
Q: German silver used for making utensils is an alloy of
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5ed88dbbb516791f26501eea- 1copper silver nickelfalse
- 2copper zinc nickeltrue
- 3copper zinc aluminumfalse
- 4copper nickel aluminumfalse
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Answer : 2. "copper zinc nickel "
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