Chemistry Practice Question and Answer
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Q: Used in removing permanent hardness of water?
1598 05eeb131bad25df5a632567d5
5eeb131bad25df5a632567d5- 1running sodatrue
- 2bleaching powderfalse
- 3Caustic sodafalse
- 4Baking Sodafalse
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Answer : 1. "running soda"
Q: Which of the following is not a normal salt?
1586 05fe9a5d9755fc73bd0795223
5fe9a5d9755fc73bd0795223- 1$$ {Na_2SO_4}$$false
- 2$$ {NaHSO_4}$$true
- 3$$ {Na_3PO_4}$$false
- 4$$ {CaSO_4}$$false
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Answer : 2. "$$ {NaHSO_4}$$"
Q: What is the mass number of an element, the atom of which contains two Protons, two neutrons and two electrons?
1579 05ee35e7455d51a0f6482cd3c
5ee35e7455d51a0f6482cd3c- 12false
- 24true
- 36false
- 48false
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Answer : 2. "4 "
Q: How many categories of elements are divided on the basis of properties?
1564 05eeadf0fad25df5a63247e87
5eeadf0fad25df5a63247e87- 14false
- 26false
- 33true
- 42false
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Answer : 3. "3"
Q: Is zinc ore?
1550 05feb073bd6478d50160f1f48
5feb073bd6478d50160f1f48- 1zinc bladetrue
- 2Bauxitefalse
- 3sodium chloridefalse
- 4Sinawarfalse
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Answer : 1. "zinc blade"
Q: Gold is alloyed with which metal to make it harder?
1549 05f571a5b79cfd646ddd37291
5f571a5b79cfd646ddd37291- 1Cfalse
- 2Snfalse
- 3Cutrue
- 4Agfalse
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Answer : 3. "Cu"
Q: The atoms, in which the number of Protons is same but the number of neutrons is different, are known as –
1547 05f0ecf31b6738d790d13d1ea
5f0ecf31b6738d790d13d1ea- 1Isotonesfalse
- 2Isotopestrue
- 3Isobarsfalse
- 4Isomersfalse
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Answer : 2. "Isotopes"
Q: Which of the following properties is not often present in organic compounds?
1541 06127662693f02206607f017f
6127662693f02206607f017f- 1soluble in watertrue
- 2low melting pointfalse
- 3flammabilityfalse
- 4allfalse
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Answer : 1. "soluble in water"
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