The element having electronic configuration [kr] 4d10, 4f14,5s2,5p6,5d1,6s2 belongs to __________?
A. S-Block
B. P-Block
C. d-Block
D. f-Block
Chemistry Mcqs
Which group contains elements that exist as monoatomic molecule?
Which group contains elements that exist as monoatomic molecule?
A. 1
B. 2
C. 14
D. 18
The concept of telluric helix was developed by___________?
The concept of telluric helix was developed by___________?
A. Lother Meyer
B. A.E de Chancourtois
C. Newland
D. Dobereiner
The law of traids is applicable to__________?
The law of traids is applicable to__________?
A. Li, Be, B
B. F, Cl, Br
C. Cl, Br, I
D. Na, K, Rb
Grignard reagent gives carboxylic acid with____________?
Grignard reagent gives carboxylic acid with____________?
A. CO2
B. CH3CHO
C. COC2
D. HCN
Hydrocarbon is formed when Grignard reagent is treated with___________?
Hydrocarbon is formed when Grignard reagent is treated with___________?
A. H2O
B. CH3OH
C. Both a and b
D. None of the above
Which of the following haloalkane is hydrolysed by SN1 mechanism?
Which of the following haloalkane is hydrolysed by SN1 mechanism?
A. CH3Br
B. CH3CH2Br
C. CH3CH2CH2Br
D. (CH3)3CBr
The density of a gas is 1.964 g dm-3 at 273 K and 76 cm Hg. The gas is _________?
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
Pressure remain constant, at which temperature the volume of gas becomes twice of what it is at 0°C?
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
In a closed vessel, a gas is heated from 300K to 600 K. The kinetic energy becomes__________?
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