Options:
- A. increases the nucleophilic character of reagent
- B. increases electrophilic character of carbonyl compound
- C. acidic character of reagent
- D. both a and b
View Answer
A. increases the nucleophilic character of reagent
Chemistry
NaOH is named as caustic soda because________________?
Options:
- A. It corrodes the organic tissues
- B. It is used in soda water
- C. It reacts with chlorine gas
- D. It reacts with fats to form soap
View Answer
A. It corrodes the organic tissues
Which one of the following pairs shown diagonal relationship in the periodic table ?
Options:
- A. Sodium and Lithium
- B. Lithium and magnesium
- C. Lithium and beryllium
- D. Boron and Beryllium
View Answer
B. Lithium and magnesium
Which compound will readily undergo sulphonation ?
Options:
- A. Benzene
- B. Nitro benzene
- C. Toluene
- D. Chlorobenzene
View Answer
C. Toluene
The atoms of same element having same atomic number but different mass number are called____________________?
Options:
- A. Isobars
- B. Isomers
- C. Isotopes
- D. Isotropes
View Answer
C. Isotopes
Modern periodic table has been divided in ___________ blocks?
Options:
- A. 2
- B. 4
- C. 8
- D. 7
View Answer
B. 4
The common thing in phthalic acid and oxalic acid is that both are_________________?
Options:
- A. Aromatic
- B. Dicarboxylic
- C. Hydrocarbons
- D. Strong acids
View Answer
B. Dicarboxylic
The irritation caused by red ants bite is due to____________________?
Options:
- A. Lactic acid
- B. Formic acid
- C. Uric acid
- D. Acetic acid
View Answer
B. Formic acid
Which of the following aldehydes shows rapid reaction with sodium nitroprusside ?
Options:
- A. formaldehyde
- B. accetaldehyde
- C. benzaldehyde
- D. acetone
View Answer
D. acetone
Which of the following will have the highest boiling point ?
Options:
- A. methanol
- B. ethanal
- C. propanal
- D. hexanone
View Answer
D. hexanone