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 D. 80.4 KJ
Chemistry MCQs
Which of the following gases shows more ideal behaviour at 0°C___________?
A. H2 B. CH4 C. He D. NH3
In a closed vessel, a gas is heated from 300K to 600 K. The kinetic energy becomes__________?
A. Double B. Same C. Half D. Four times
Pressure remain constant, at which temperature the volume of gas becomes twice of what it is at 0°C?
A. 546 °C B. 546 K C. 200°C D. 273 K
The density of a gas is 1.964 g dm-3 at 273 K and 76 cm Hg. The gas is _________?
A. CH4 B. CO2 C. C2H4 D. Xe
Which of the following haloalkane is hydrolysed by SN1 mechanism?
A. CH3Br B. CH3CH2Br C. CH3CH2CH2Br D. (CH3)3CBr
Hydrocarbon is formed when Grignard reagent is treated with___________?
A. H2O B. CH3OH C. Both a and b D. None of the above
Grignard reagent gives carboxylic acid with____________?
A. CO2 B. CH3CHO C. COC2 D. HCN
The law of traids is applicable to__________?
A. Li, Be, B B. F, Cl, Br C. Cl, Br, I D. Na, K, Rb
The concept of telluric helix was developed by___________?
A. Lother Meyer B. A.E de Chancourtois C. Newland D. Dobereiner