Options:
- A. Electrophilic addition
- B. Electrophilic substitution
- C. Nucleophilic addition
- D. Necleophilic substitution
View Answer
C. Nucleophilic addition
Chemistry
Electric bulb filament is made of__________?
Options:
- A. Copper
- B.
- C.
- D.
View Answer
D.
Which of the following orbitals has maximum penetration effect?
Options:
- A. S
- B. P
- C. d
- D. f
View Answer
A. S
The main buffer system of the human blood is____________?
Options:
- A. H2CO3
- B.
- C.
- D.
View Answer
A. H2CO3
Which of the following gases shows more ideal behaviour at 0
Options:
- A. H2
- B. CH4
- C. He
- D. NH3
View Answer
C. He
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of____________?
Options:
- A. p-electrons in Ne(Z = 10)
- B.
- C.
- D.
View Answer
D.
In a closed vessel, a gas is heated from 300K to 600 K. The kinetic energy becomes__________?
Options:
- A. Double
- B. Same
- C. Half
- D. Four times
View Answer
A. Double
The metallurgical process in which a metal is obtained in a fused state is called__________?
Options:
- A.
- B.
- C.
- D.
View Answer
A.
Pressure remain constant, at which temperature the volume of gas becomes twice of what it is at 0
Options:
- A. 546
- B. 546 K
- C. 200
- D. 273 K
View Answer
B. 546 K
The molecules of which gas have highest speed?
Options:
- A. H2
- B.
- C.
- D.
View Answer
A. H2