Chemistry

Chemistry Objective (Multiple Choice) General Knowledge Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examination

Bring out the only correct statement in context with Uranium:

Bring out the only correct statement in context with Uranium: [A]Both U-235 and U-238 are fissile but only U-235 can sustain chain reactions [B]Only U-235 is fissile and can sustain chain reaction but U-238 is fertile [C]U-238 can be used in chain reactions only after extracting U-235 from it [D]Uranium enrichment is a process where ..

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“Atoms can neither be created nor destroyed.” This principle was given by

“Atoms can neither be created nor destroyed.” This principle was given by __? [A]Avogadro [B]Dalton [C]Rutherford [D]Niels Bohr Show Answer Dalton The given principle is one of the postulates of the Dalton’s atomic theory given in 1803 by John Dalton. The postulates of Dalton’s atomic theory are as follows: 1. Elements consist of indivisible small ..

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2,4-D, which is sold as a weed killer of the broad-leaved weeds is a synthetic version of

2,4-D, which is sold as a weed killer of the broad-leaved weeds is a synthetic version of __: [A]Auxin Hormone [B]Cytokinin Hormone [C]Xylitol [D]None of them Show Answer Auxin Hormone 2,4-dichlorophenoxyacetic acid (2,4-dichlorophenoxyethanoic acid) is a synthetic auxin frequently used as a weed killer of broad-leaved weeds. When two herbicides 2,4,5-T and 2,4-D and mixed ..

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The aqueous solution of which among the following acids is called Vinegar?

The aqueous solution of which among the following acids is called Vinegar? [A]Oxalic acid [B]Citric acid [C]Acetic acid [D]Hydrochloric acid Show Answer Acetic acid

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Which among the following is the correct decreasing of bioelements in Human Body?

Which among the following is the correct decreasing of bioelements in Human Body? [A]oxygen, hydrogen, Carbon, nitrogen, calcium, and phosphorus [B]oxygen, carbon, nitrogen, hydrogen, calcium, and phosphorus [C]oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus [D]carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus Show Answer oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus

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