Which of the following is showing decrease in entropy?
A Freezing of water at `0^@C`
B Freezing of water at `-10^@C`
C `N_2 +3H_2 to 2NH_3`
D Adsorption of CO on Charcoal
E NaCl in `H_2O`

During which of the following processes, does entropy decrease ? (A)Freezing of water to ice at 0^(@)C (B) Freezing of water to ice at -10^(@)C (C ) N_(2)(g)+3H_(2)(g) to 2NH_(3)(g) (D) Adsorption of CO(g) on lead surface. (E ) Dissolution of NaCl in water Choose the correct answer from the options given below:

What is the molality of C_2H_5 OH in water solution which will freeze at -10^@C ?

Which of the following are green house gases ? (a) CO_2 (b) O_2 (c) O_3 (d) CFC (e) H_2O

Arrange the following in decreasing order of their basic strength : C_6H_5 NH_2, C_2H_5NH_2 (C_2H_5)_2NH,NH_3 in aqueous solution.

Which of the following solutions in H_(2)O will show maximum depression in freezing point? a. 0.1 M K_(2)[Hgl_(4)] , b. 0.2 M Ba(NO_(3))_(2) c. 0.3 M "glucose" , d. 0.4 M NaCl

Arrange the following in decreasing order of their basic strength: C_(6)H_(5)NH_(2), C_(2)H_(5)NH_(2), (C_(2)H_(5))_(2)NH, NH_(3) in aqueous solution.

Which of the following can act both as a Bronsted acid and a Bronsted base ? (a) HCO_3^- , (b) O^2^- , (c) NH_3 , (d) H_2O , (e) HS^-

Arrange the following compounds in an increasing order of their solubility in water: C-6H_5NH_2(C_2H_5)_2NH,C_2H_5NH_2

Arrange the following in decreasing order of their basic strength : C_(6)H_(5)NH_(2),C_(2)H_(5)NH_(2),(C_(2)H_(5))_(2)NH_(3)