Options:
- A. methane
- B. ethane
- C. propane
- D. butane
View Answer
B. ethane
Chemistry
Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?
Options:
- A. CH3-X
- B. (CH3)3 C-CH2
- C. (CH3)2 CH
- D. (CH3)3 C
View Answer
C. (CH3)2 CH
Heating phenol with Zn will yield_________________?
Options:
- A. Benzene
- B. Benzoic acid
- C. Phenoxide
- D. Cyclohexane
View Answer
A. Benzene
Mixture of catalysts Cr2O3 + A?2O3 + SiO2 at 500?C are used when benzene is prepared from_______________?
Options:
- A. acetylene
- B. N-hexane
- C. Benzene sulphonic acid
- D. Sodium benzoate
View Answer
B. N-hexane
Because of its ability to combine with both oxygen and nitrogen aluminium metal is used_____________?
Options:
- A. As nitrometer
- B. To remove air bubbles from molten metal
- C. To produce alloy
- D. As insulator
View Answer
B. To remove air bubbles from molten metal
Which of the following is not a use of silicon ?
Options:
- A. Lubricants
- B. Hydraulic brakes
- C. Antifreeze
- D. Water repellent
View Answer
C. Antifreeze
Which allotropic form of phosphorous is the most stable ?
Options:
- A. White
- B. black
- C. red
- D. Violet
View Answer
B. black
FeSO4 forms brown ring with________________?
Options:
- A. N2O3
- B. NO2
- C. NO
- D. N2O
View Answer
C. NO
Photographic plates are coated with a thin film of _________________?
Options:
- A. AgNO3
- B. AgI
- C. AgCl
- D. AgBr
View Answer
D. AgBr
The anhydride of HCIO4 is_________________?
Options:
- A. Cl2O
- B. Cl2O6
- C. ClO2
- D. Cl2O7
View Answer
D. Cl2O7