Options:
- A. Lysine
- B. Histidine
- C. Proline
- D. Glutamic acid
View Answer
C. Proline
Chemistry
Which of the following is not a use of acetaldehyde ?
Options:
- A. formation of phenolic resins
- B. formation of mirror
- C. antiseptic inhalant
- D. formation of throat lozenges
View Answer
D. formation of throat lozenges
Which of the following reagents will react with both aldehydes and ketones ?
Options:
- A. Grignard reagent
- B. Tollens reagent
- C. Fehlings reagent
- D. Benedicts reagent
View Answer
A. Grignard reagent
Which one of the following is not an alkali metal ?
Options:
- A. Francium
- B. Caesium
- C. Rubidium
- D. Radium
View Answer
D. Radium
The word Alkali means__________________?
Options:
- A. Base
- B. Basic salt
- C. Ashes
- D. Spirit
View Answer
C. Ashes
Phenanthrene is a fused polycyclic compound contains __________ benzene rings ?
Options:
- A. Two
- B. Three
- C. Four
- D. Five
View Answer
B. Three
In benzene sulphonic acid the sulphonic group is attached with benzene ring through ___________________?
Options:
- A. Hydrogen
- B. Oxygen
- C. Sulphur
- D. OH
View Answer
C. Sulphur
Elements with similar chemical properties appear in the_________________?
Options:
- A. Same family
- B. Same period
- C. p block elements
- D. Right upper corner
View Answer
A. Same family
Which one of the following element has highest oxidation state in its compounds ?
Options:
- A. Cr
- B. Mn
- C. Sn
- D. O
View Answer
B. Mn
The property which increases upto group IV-A then decreases on wards_______________?
Options:
- A. Ionization energy
- B. Atomic radii
- C. Melting & boiling points
- D. Atomic volume
View Answer
C. Melting & boiling points