Chemistry Practice Question and Answer
8 4 Q:
5eeb131bad25df5a632567d5 4 Q:
5f697aa5397b1a52908bfe4f 4 Q:
650ab26a63078e50a28c8adb Answer : 2. "If it has more electrons than neutrons"
4 Q:
5eeadf0fad25df5a63247e87 4 Q:
5f0ecf31b6738d790d13d1ea 4 Q:
5f571a5b79cfd646ddd37291 4 Q:
6127662693f02206607f017f 4 Q:
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Q: Used in removing permanent hardness of water?
1531 05eeb131bad25df5a632567d5
5eeb131bad25df5a632567d5- 1running sodatrue
- 2bleaching powderfalse
- 3Caustic sodafalse
- 4Baking Sodafalse
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Answer : 1. "running soda"
Q: What is the pH value of sodium hydroxide?
1530 05f697aa5397b1a52908bfe4f
5f697aa5397b1a52908bfe4f- 111false
- 212false
- 313false
- 414true
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Answer : 4. "14"
Q: Which of the following will be a negative ion?
1517 0650ab26a63078e50a28c8adb
650ab26a63078e50a28c8adb- 1If it has more electrons than protonsfalse
- 2If it has more electrons than neutronstrue
- 3If it has more protons than electronsfalse
- 4If it has more protons than neutronsfalse
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Answer : 2. "If it has more electrons than neutrons"
Explanation :
If an atom has more electrons than protons, it is a negative ion or anion. If it has more protons than electrons, it is a positive ion.
Q: How many categories of elements are divided on the basis of properties?
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5eeadf0fad25df5a63247e87- 14false
- 26false
- 33true
- 42false
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Answer : 3. "3"
Q: The atoms, in which the number of Protons is same but the number of neutrons is different, are known as –
1500 05f0ecf31b6738d790d13d1ea
5f0ecf31b6738d790d13d1ea- 1Isotonesfalse
- 2Isotopestrue
- 3Isobarsfalse
- 4Isomersfalse
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Answer : 2. "Isotopes"
Q: Gold is alloyed with which metal to make it harder?
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5f571a5b79cfd646ddd37291- 1Cfalse
- 2Snfalse
- 3Cutrue
- 4Agfalse
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Answer : 3. "Cu"
Q: Which of the following properties is not often present in organic compounds?
1489 06127662693f02206607f017f
6127662693f02206607f017f- 1soluble in watertrue
- 2low melting pointfalse
- 3flammabilityfalse
- 4allfalse
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Answer : 1. "soluble in water"
Q: Thin wires can be pulled from a metal piece. For which property of the metal is it responsible?
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5feb0909f33a00432aff0fc3- 1Tensiletrue
- 2hardnessfalse
- 3Malignancyfalse
- 4conductivityfalse
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Answer : 1. "Tensile"
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