Ce58 is a member of__________?
Ce58 is a member of__________?
A. S-block
B. P-block
C. d-block
D. f-block
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The source of the Sun’s energy is the process of ____________?
The source of the Sun’s energy is the process of ____________?A. Photoelectric emission
B. Nuclear fission
C. Nuclear fusion
D. Thermionic emissionWhen an aldehyde is reacted with hydrogen cyanide a ” Cyanihydrin” is formed. This process is best termed as __________?
When an aldehyde is reacted with hydrogen cyanide a ” Cyanihydrin” is formed. This process is best termed as __________?A. Electrophilic addition
B. Electrophilic substitution
C. Nucleophilic addition
D. Necleophilic substitution2nd orbit is ___________ away from nucleus of H-atom as compared to 1st orbit is ?
2nd orbit is ___________ away from nucleus of H-atom as compared to 1st orbit is ?A. 2-times
B. 3-times
C. 4-times
D. 6 timesA metallic atom loses its valence electron to form a/an _________?
A metallic atom loses its valence electron to form a/an _________?A. an anion
B. a cation
C. an anion – cation
D. none of theseWhich one is the right value for R ?
Which one is the right value for R ?A. 0.0821 atm dm3k-1mol-
B. 0.0821 atm m3k-1mol-1
C. 2 cal k-1 mol-1
D. 8.314 Nm2k-1mol-1The amount of Benzene is obtained from Coal Tar on its Fractional Distillation?
The amount of Benzene is obtained from Coal Tar on its Fractional Distillation?A. 1-2Kg
B. 1-3Kg
C. 1-4Kg
D. 1-5Kg