Chemistry General Knowledge Questions Practice Question and Answer
8Q: What is the systematic name of PbO? 1371 05b5cc5ffe4d2b4197774b412
5b5cc5ffe4d2b4197774b412- 1Plumbic oxidefalse
- 2Lead oxidefalse
- 3Lead(II) oxidetrue
- 4All of the abovefalse
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Answer : 3. "Lead(II) oxide"
Explanation :
Answer: C) Lead(II) oxide Explanation: The systematic name for a chemical is the unique name given to it by the International Union of Pure Applied Chemistry (IUPAC). The IUPAC name can differ from a chemical compound's general name. PbO is an ionic compound since it consists of a Lead as metal and Oxygen as nonmetal. The systematic name for PbO is Lead (II) oxide. Here we need to put the (II) since lead has more than one combining capacity.
Q: Which gas is mostly present in Venus atmosphere?
1322 05ed600125ccf7008ed8ceeb9
5ed600125ccf7008ed8ceeb9- 1Hydrogenfalse
- 2Carbon Dioxidetrue
- 3Heliumfalse
- 4Nitrogenfalse
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Answer : 2. "Carbon Dioxide"
Q: Which of the following is not nucleon?
1242 05fe1bfc8ce32c8585c73a73c
5fe1bfc8ce32c8585c73a73c- 1Protonfalse
- 2Neutronfalse
- 3Both (A) and (B)false
- 4Positrontrue
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Answer : 4. "Positron "
Q: Which of the following is not a normal salt?
1228 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: Burning of Hydrogen produces
1195 05f0439f6d996064ceba91846
5f0439f6d996064ceba91846- 1Soilfalse
- 2Watertrue
- 3Oxygenfalse
- 4Ashfalse
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Answer : 2. "Water"
Q: The atoms, in which the number of Protons is same but the number of neutrons is different, are known as –
1157 05f0ecf31b6738d790d13d1ea
5f0ecf31b6738d790d13d1ea- 1Isotonesfalse
- 2Isotopestrue
- 3Isobarsfalse
- 4Isomersfalse
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Answer : 2. "Isotopes"
Q: The element common to all acids is 1151 05edeface2fce215c8ec3bc2f
5edeface2fce215c8ec3bc2f- 1oxygenfalse
- 2hydrogentrue
- 3carbonfalse
- 4sulphurfalse
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Answer : 2. "hydrogen"
Q: The percentage of nitrogen present in ammonium sulphate is:
1147 060b0d6453f7fb454b9dd0d87
60b0d6453f7fb454b9dd0d87- 1$$ 30.5 \% $$false
- 2$$ 18 \% $$false
- 3$$ 21 \% $$true
- 4$$ 25\% $$false
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