At start of reaction the concentration of reactants is_______________?
At start of reaction the concentration of reactants is_______________?
A. high
B. low
C. according to Kc
D. constant
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The energy of one mole of photons of radiation, whose frequency is 4×10 14 Hz, is ___________?A. 159.6kJ
B. 135.5 KJ
C. 110.5 KJ
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B. They show variable valency
C. All transition metal compounds are paramagnetic
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The chemical composition of cinnabar is__________________?A. ZnS
B. PbS
C. HgS
D. FeSWhich of the following is not a fatty acid ?
Which of the following is not a fatty acid ?A. Propanoic acid
B. Acetic acid
C. Phthalic acid
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Which of the following is not a condition for the formation of smog ?A. sufficient NO
B. sunlight
C. less movement of air
D. windsCombustion analysis is performed to determine__________________?
Combustion analysis is performed to determine__________________?A. Empirical formula
B. Molecular mass
C. Molecular formula
D. Formula mass