Options:
- A. S-Block
- B. P-Block
- C. d-Block
- D. f-Block
View Answer
D. f-Block
Chemistry
The molecular formula for cholesterol is C27 H46 O. What are the degrees of unsaturation for this compound?
Options:
- A. 5
- B. 6
- C. 7
- D. 8
View Answer
A. 5
Argon gas was discovered by_______?
Options:
- A. Rayleigh
- B. Ramsay
- C. Lockerey
- D. Dalton
View Answer
B. Ramsay
In melting of iron, which of the following reactions takes place in Bladt Furnace at 400
Options:
- A. CaO+ SiO2
- B. 2FeS+3O2
- C. FeSiO3
- D. Fe2O3+ 3CO
View Answer
D. Fe2O3+ 3CO
BeCl2 has the hybrid orbitaks of type_______?
Options:
- A. Sp2
- B. Sp3
- C. Sp
- D. dsp2
View Answer
C. Sp
The hybridization of nitrogen atom in pyridine is_______?
Options:
- A. Sp
- B. Sp2
- C. Sp3
- D. It is not hybridized
View Answer
B. Sp2
Which one of the following compound does not have
Options:
- A. ethylene glycol
- B. glycerol
- C. picric acid
- D. ethyl acetate
View Answer
D. ethyl acetate
Which of the following alloys contain(s) Cu and Zn?
Options:
- A. Bronze
- B. Brass
- C. Gun-metal
- D. Type metal
View Answer
B. Brass
The bond length of C=C is___________?
Options:
- A. 1.20A
- B. 1.34A
- C. 1.54A
- D. 1.68A
View Answer
D. 1.68A
Generally the limit of visible spectrum is__________?
Options:
- A. 1000 to 300 A
- B. 3800 to 7600 A
- C. 8000 to 10,000 A
- D. 12,000 to 15,000 A
View Answer
B. 3800 to 7600 A