Practice Question and Answer
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Q: Who proposed first atomic theory ? 1984 05c2dbf5bf11ee42b64688fd5
5c2dbf5bf11ee42b64688fd5- 1E Rutherfordfalse
- 2De Brogliefalse
- 3John Daltontrue
- 4D.I. Mendeleeffalse
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Answer : 3. "John Dalton"
Q: Natural rubber is a polymer derived from ? 1965 05c2dbf1cf11ee42b64688fd0
5c2dbf1cf11ee42b64688fd0- 1ethylenefalse
- 2propylenefalse
- 3isoprenetrue
- 4butadienefalse
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Answer : 3. "isoprene"
Q: Washing soda is ? 1739 05c2dbeeef11ee42b64688fcb
5c2dbeeef11ee42b64688fcb- 1sodium sulphitefalse
- 2sodium bicarbonatefalse
- 3sodium carbonatetrue
- 4sodium biosulphitefalse
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Answer : 3. "sodium carbonate"
Q: Air contains maximum amount of 2039 05c2dbeb3f11ee42b64688fc6
5c2dbeb3f11ee42b64688fc6- 1oxygenfalse
- 2nitrogentrue
- 3hydrogenfalse
- 4carbon dioxidefalse
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Answer : 2. "nitrogen"
Q: Homo nuclear molecules contain ? 2111 05c2dbe7bbc106c237a22c19e
5c2dbe7bbc106c237a22c19e- 1polar bondfalse
- 2covalent bondtrue
- 3ionic bondfalse
- 4coordinate bondfalse
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Answer : 2. "covalent bond"
Q: Human bone does not contain 3773 05c2dbe4ebc106c237a22c199
5c2dbe4ebc106c237a22c199- 1calciumfalse
- 2carbonfalse
- 3oxygentrue
- 4phosphorousfalse
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Answer : 3. "oxygen"
Q: The isotope atoms differ in ? 2619 05c2dbe24bc106c237a22c194
5c2dbe24bc106c237a22c194- 1number of neutronstrue
- 2atomic numberfalse
- 3number of electronsfalse
- 4atomic weightfalse
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Answer : 1. "number of neutrons"
Q: What nucleus of atom contains ? 1854 05c2dbdee0cb513238953f92c
5c2dbdee0cb513238953f92c- 1protonsfalse
- 2electronsfalse
- 3electrons and protonsfalse
- 4protons and neutronstrue
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Answer : 4. "protons and neutrons"
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