Options:
- A. Be
- B. Cl
- C. K
- D. P
View Answer
A. Be
Chemistry
The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?
Options:
- A. Distillation
- B. Extraction
- C. Gas chromatography
- D. Column chromatography
View Answer
D. Column chromatography
SO2 reacts with Cl in sunlight to form__________?
Options:
- A. Sulphur dioxide
- B. Sulphuryl chloride
- C. Suphanyl chloride
- D. All of the above
View Answer
B. Sulphuryl chloride
Gypsum is______?
Options:
- A. CaSO4
- B. CaSO4.1/2H2O
- C. CaSO4,2H2O
- D. CaSO4.3H2O
View Answer
C. CaSO4,2H2O
Molecular orbital Theory is also called_________?
Options:
- A. Bonding theory
- B. Band theory
- C. Antibondingtheory
- D.? and ? bonding theory
View Answer
C. Antibondingtheory
The IUPAC name of pyridines is__________?
Options:
- A. Azolo
- B. Azine
- C. Azolidins
- D. Diazine
View Answer
B. Azine
Ethers show functional group isomerism with __________________?
Options:
- A. aldehydes
- B. ketones
- C. alcohols
- D. carboxylic acid
View Answer
C. alcohols
Which of the following is soluble in water?
Options:
- A. AgF
- B. AgCl
- C. AgBr
- D. AgI
View Answer
A. AgF
The stationary and mobile phases in paper chromatography are____________?
Options:
- A. Liquid/liquid
- B. Solid/liquid
- C. Liquid/solid
- D. Liquid/gas
View Answer
B. Solid/liquid
If R is the Rydberg constant for hydrogen, then wave-number of the second line in the Lyman series is _________?
Options:
- A. 2 R
- B. R/2
- C. 3R/4
- D. R/4
View Answer
C. 3R/4