Which of the following orbitals has maximum penetration effect?
A. S
B. P
C. d
D. f
Which of the following is most soluble on water?
A. BaSO4
B. SrSO4
C. CaSO4
D. MgSO4
The common oxidation state of lanthanides is:
A. +3
B. +2
C. +1
D. +4
Which one of the following is a bridge element?
A. Be
B. Cl
C. K
D. P
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:
A. Lother Meyer
B. A.E de Chancourtois
C. Newland
D. Dobereiner
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:
A. CO2
B. CH3CHO
C. COC2
D. HCN
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?
A. CH3Br
B. CH3CH2Br
C. CH3CH2CH2Br
D. (CH3)3CBr
