Chemistry Practice Question and Answer
8 4 Q:
5f697b91397b1a52908c03b2 4 Q:
5f698fe6f9079a64e3a5b205 4 Q:
61275c5e302e8b067c99c5ab 4 Q:
64b51d2e568e7ff594b01e05 Answer : 1. "Alcohol"
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638de33134f83f14728e2d6e 4 Q:
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Q: Substances that have a sour taste and which makes a solution of blue litmus red are called?
1207 05f697b91397b1a52908c03b2
5f697b91397b1a52908c03b2- 1acidtrue
- 2saltsfalse
- 3consumedfalse
- 4Basefalse
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Answer : 1. "acid"
Q: What are the substances that participate in a reaction?
1207 05f698fe6f9079a64e3a5b205
5f698fe6f9079a64e3a5b205- 1considerationfalse
- 2Deductivefalse
- 3reactantstrue
- 4Oxidizerfalse
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Answer : 3. "reactants"
Q: Gold is used to make jewelery?
1200 061275c5e302e8b067c99c5ab
61275c5e302e8b067c99c5ab- 122 caratstrue
- 224 caratfalse
- 316 caratsfalse
- 423 caratsfalse
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Answer : 1. "22 carats"
Q: Identify a class of compounds that has a functional group –OH.
1198 064b51d2e568e7ff594b01e05
64b51d2e568e7ff594b01e05- 1Alcoholtrue
- 2Ethanefalse
- 3Ketonefalse
- 4Aldehydefalse
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Answer : 1. "Alcohol"
Explanation :
1. That class of compounds, which contain a functional group –OH, is called alcohol.
2. Alcohols contain a hydrogen atom and a hydroxyl group (-OH) along with a carbon atom.
3. The hydroxyl group is a polar group, which makes the alcohol soluble in water.
Q: How many carbon atoms are joined in buckminsterfullerene?
1189 062ebdd1b4404a856fa1fc772
62ebdd1b4404a856fa1fc772- 130false
- 290false
- 360true
- 4120false
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Answer : 3. "60"
Q: An acid must contain mainly one atom which reacts with the metal to produce a gas.
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5f697b4cf9079a64e3a5161a- 1Hydrogentrue
- 2oxygenfalse
- 3Nitrogenfalse
- 4Ammoniafalse
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Answer : 1. "Hydrogen"
Q: Which one of the following is non-reducing sugar?
1187 0638de33134f83f14728e2d6e
638de33134f83f14728e2d6e- 1Glucosefalse
- 2Sucrosetrue
- 3Maltosefalse
- 4Lactosefalse
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Answer : 2. "Sucrose"
Q: What is an oxidation-reduction reaction called?
1185 05feb01ebf6205c4d625d0454
5feb01ebf6205c4d625d0454- 1endothermic reactionfalse
- 2Redox reactiontrue
- 3precipitation reactionfalse
- 4exothermic reactionfalse
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Answer : 2. "Redox reaction"
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