Among the following, the set of parameters that represents path functions, is:
(A) q+w
(B) q
(C) w
(D) H-TS
A, B and C
B, C and D
B and C
A and D
The element having greatest difference between its first and second ionization energies, is
K
Ca
Ba
Sc
The standard Gibbs energy for the given cell reaction in kJ mol-1 at 298 K is:
Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s), E° = 2V at 298 K
-192
384
-384
192
Among the following, the molecule expected to be stabilized by anion formation is:
C2, O2, NO and F2
NO
C2
F2
O2
For any given series of spectral lines of atomic hydrogen, let be the difference in maximum and minimum frequencies in cm-1. The ratio is:
4 : 1
9 : 4
5 : 4
27.5
For a reaction, N2 (g) + 3H2 (g) → 2NH3 (g); Identify dihydrogen (H2) as a limiting reagent in the following reaction mixtures.
35 gm of N2 + 8 gm of H2
28 gm of N2 + 6 gm of H2
56 gm of N2 + 10 gm of H2
14 gm of N2 + 4 gm of H2
Liquid ‘M’ and liquid ‘N’ form an ideal solution. The vapour pressures of pure liquids ‘M’ and ‘N’ are 450 and 700mm Hg, respectively, at the same temperature. Then correct statement is:
(xM = Mole fraction of 'M' is solution; xN = Mole fraction of 'N' in solution; yM = Mole fraction of 'M' in vapour phase; yN = Mole fraction of 'N' in vapour phase)
(xM - yM) < (xN - yN)
The correct IUPAC name of following compound
2-methyl–5-nitro-1-chlorobenzene
2-chloro–1-methyl-4-nitrobenzene
5-chloro–4–methyl–1–nitrobenzene
3-chloro–4–methyl–1–nitrobenzene
The organic compound that gives following qualitative analysis is:
Test | Inference |
a. Dil. HCl | Insoluble |
b. NaOH solution | Soluble |
c. Br2/ water | Decolourization |