Science GK प्रश्न और उत्तर का अभ्यास करें
8 4 4 4 4 4 4 4 4
प्र: Which have the maximum density ? 2359 05c2dbffa94bba731de8f0a27
5c2dbffa94bba731de8f0a27- 1watertrue
- 2Benzenefalse
- 3Icefalse
- 4Chloroformfalse
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उत्तर : 1. "water"
प्र: Which one of the following is the softest? 1733 05c2dbfd594bba731de8f0a22
5c2dbfd594bba731de8f0a22- 1sodiumtrue
- 2ironfalse
- 3aluminiumfalse
- 4lithiumfalse
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उत्तर : 1. "sodium"
प्र: pH of blood is ? 1596 05c2dbf80f11ee42b64688fda
5c2dbf80f11ee42b64688fda- 110.4false
- 29false
- 37.4true
- 44false
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उत्तर : 3. "7.4"
प्र: Washing soda is ? 1419 05c2dbeeef11ee42b64688fcb
5c2dbeeef11ee42b64688fcb- 1sodium sulphitefalse
- 2sodium bicarbonatefalse
- 3sodium carbonatetrue
- 4sodium biosulphitefalse
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उत्तर : 3. "sodium carbonate"
प्र: Air contains maximum amount of 1705 05c2dbeb3f11ee42b64688fc6
5c2dbeb3f11ee42b64688fc6- 1oxygenfalse
- 2nitrogentrue
- 3hydrogenfalse
- 4carbon dioxidefalse
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उत्तर : 2. "nitrogen"
प्र: Homo nuclear molecules contain ? 1778 05c2dbe7bbc106c237a22c19e
5c2dbe7bbc106c237a22c19e- 1polar bondfalse
- 2covalent bondtrue
- 3ionic bondfalse
- 4coordinate bondfalse
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उत्तर : 2. "covalent bond"
प्र: What nucleus of atom contains ? 1484 05c2dbdee0cb513238953f92c
5c2dbdee0cb513238953f92c- 1protonsfalse
- 2electronsfalse
- 3electrons and protonsfalse
- 4protons and neutronstrue
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उत्तर : 4. "protons and neutrons"
प्र: Nail polish remover contains ? 1494 05c2dbdbcbc106c237a22c18f
5c2dbdbcbc106c237a22c18f- 1benzenefalse
- 2acetic acidfalse
- 3acetonetrue
- 4petroleum etherfalse
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