Chemistry General Knowledge Questions Practice Question and Answer
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Q: Which one of the following substance is used in photography and also as an antichlor ?
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6245534c398e4a497b3e9570- 1Chrome redfalse
- 2Sodium thisosulphatetrue
- 3Hydrogen peroxidefalse
- 4Calomelfalse
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Answer : 2. "Sodium thisosulphate "
Q: The coil in a heater is made of
717 160939952b8018e6486aef888
60939952b8018e6486aef888- 1Nichrometrue
- 2Tungstenfalse
- 3Copperfalse
- 4Ironfalse
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Answer : 1. "Nichrome"
Q: Which of the following has low density and low melting point?
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6082915b38ab470ae93bd9be- 1Natrue
- 2Fefalse
- 3Cufalse
- 4Aufalse
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Answer : 1. "Na"
Q: In the nucleus of Helium,
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5fe9a17300e3f71b8285c3ff- 1four protonsfalse
- 2four neutronsfalse
- 3two neutrons and two protonstrue
- 4four protons and two electronsfalse
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Answer : 3. "two neutrons and two protons"
Q: Which of the following is a non-metal?
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61275e1a302e8b067c99d237- 1Cobaltfalse
- 2Hydrogentrue
- 3ironfalse
- 4goldfalse
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Answer : 2. "Hydrogen"
Q: Water in case of HCl acts as a/an ___________, in case of ammonia acts as a/an ________
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63c7c8d3be373f6c9546a490- 1Base, basefalse
- 2Base, acidtrue
- 3Acid, basefalse
- 4Acid, acidfalse
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Answer : 2. "Base, acid "
Q: What happens in most toothpastes to prevent tooth decay?
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5fe9a2ea04717d1a56bf8d1f- 1Bromidefalse
- 2Fluoridetrue
- 3Iodidefalse
- 4Chloridefalse
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Answer : 2. "Fluoride"
Q: Which of the following compound contains only Carbon and Hydrogen atoms in their formation?
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613ac986dffb173b7bd55970- 1Chloroformfalse
- 2Teflonfalse
- 3Ethanolfalse
- 4Benzenetrue
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Answer : 4. "Benzene"
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