Options:
- A. Acidic
- B. Basic
- C. Amphoteric
- D. Neutral
View Answer
C. Amphoteric
Chemistry
Which ion will have maximum value of heat of hydration ?
Options:
- A. A1+3
- B. Cs+
- C. Ba+
- D. Mg+2
View Answer
A. A1+3
Second ionization potential of alkali metals are very high due to_______________?
Options:
- A. being s-block elements
- B. inert gas configurations
- C. ns1 electronic configuration
- D. being metals
View Answer
B. inert gas configurations
Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7 ?
Options:
- A. Toluene
- B. Ethyl benzene
- C. n-propyl benzene
- D. All
View Answer
D. All
Which of the following will not form crystalline structure with opporitely charged ions_________________?
Options:
- A. H+
- B. H-
- C. Mg2+
- D. Ca2+
View Answer
A. H+
Melting points of VII-A group elements down the group ____________________?
Options:
- A. Increase
- B. Decrease
- C. Remain constant
- D. No regular trend
View Answer
A. Increase
In which of the following pairs are elements belonging to the same group ?
Options:
- A. Boron & Beryllium
- B. Nitrogen & Phosphorous
- C. Magnesium & Aluminium
- D. Gallium & Helium
View Answer
B. Nitrogen & Phosphorous
In the formation of Zwitter ions proton goes from____________________?
Options:
- A. Carboxyl to amino group
- B. Amino to carboxyl group
- C. Amino group only
- D. Carboxyl group only
View Answer
A. Carboxyl to amino group
The term internal salt refers to_____________________?
Options:
- A. Acidic character of amino acids
- B. Basic character of amino acids
- C. Dipolar character of amino acids
- D. Non-polar structure of amino acids
View Answer
C. Dipolar character of amino acids
Ketones are comparatively less reactive than aldehdye. It is due to_______________?
Options:
- A. alkyl groups are electron donating
- B. steric hindrance
- C. Both A and B
- D. none
View Answer
C. Both A and B