Given below are two statements, one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$.
Assertion A: The spin only magnetic moment value for $$\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}$$ is $$1.74 \mathrm{BM}$$, whereas for $$\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$$ is $$5.92 \mathrm{BM}$$.
Reason $$\mathbf{R}$$ : In both complexes, $$\mathrm{Fe}$$ is present in +3 oxidation state.
In the light of the above statements, choose the correct answer from the options given below:
Which of the following options are correct for the reaction
$$2\left[\mathrm{Au}(\mathrm{CN})_{2}\right]^{-}(\mathrm{aq})+\mathrm{Zn}(\mathrm{s}) \rightarrow 2 \mathrm{Au}(\mathrm{s})+\left[\mathrm{Zn}(\mathrm{CN})_{4}\right]^{2-}(\mathrm{aq})$$
A. Redox reaction
B. Displacement reaction
C. Decomposition reaction
D. Combination reaction
Choose the correct answer from the options given below:
Match List I with List II
LIST I Oxide |
LIST II Type of bond |
||
---|---|---|---|
A. | $$\mathrm{N_2O_4}$$ | I. | 1 N = O bond |
B. | $$\mathrm{NO_2}$$ | II. | 1 N $$-$$ O $$-$$ N bond |
C. | $$\mathrm{N_2O_5}$$ | III. | 1 N $$-$$ N bond |
D. | $$\mathrm{N_2O}$$ | IV. | 1 N=N / N $$\equiv$$ N bond |
Choose the correct answer from the options given below:
Match List I with List II
LIST I Enzymatic reaction |
LIST II Enzyme |
||
---|---|---|---|
A. | Sucrose $$\to$$ Glocuse and Fructose | I. | Zymase |
B. | Glucose $$\to$$ ethyl alcohol and CO$$_2$$ | II. | Pepsin |
C. | Starch $$\to$$ Maltose | III. | Invertase |
D. | Proteins $$\to$$ Amino acids | IV. | Diastase |
Choose the correct answer from the options given below:
Match List I with List II
LIST I Element detected |
LIST II Reagent used / Product formed |
||
---|---|---|---|
A. | Nitrogen | I. | $$\mathrm{Na_2[Fe(CN)_5NO]}$$ |
B. | Sulphur | II. | $$\mathrm{AgNO_3}$$ |
C. | Phosphorous | III. | $$\mathrm{Fe_4[Fe(CN)_6]_3}$$ |
D. | Halogen | IV. | $$\mathrm{(NH_4)_2MoO_4}$$ |
Choose the correct answer from the options given below:
Consider the graph of Gibbs free energy G vs Extent of reaction. The number of statement/s from the following which are true with respect to points (a), (b) and (c) is _________
A. Reaction is spontaneous at (a) and (b)
B. Reaction is at equilibrium at point (b) and non-spontaneous at point (c)
C. Reaction is spontaneous at (a) and non-spontaneous at (c)
D. Reaction is non-spontaneous at (a) and (b)
Mass of Urea $$\left(\mathrm{NH}_{2} \mathrm{CONH}_{2}\right)$$ required to be dissolved in $$1000 \mathrm{~g}$$ of water in order to reduce the vapour pressure of water by $$25 \%$$ is _________ g. (Nearest integer)
Given: Molar mass of N, C, O and H are $$14,12,16$$ and $$1 \mathrm{~g} \mathrm{~mol}^{-1}$$ respectively
The value of $$\log \mathrm{K}$$ for the reaction $$\mathrm{A} \rightleftharpoons \mathrm{B}$$ at $$298 \mathrm{~K}$$ is ___________. (Nearest integer)
Given: $$\Delta \mathrm{H}^{\circ}=-54.07 \mathrm{~kJ} \mathrm{~mol}^{-1}$$
$$\Delta \mathrm{S}^{\circ}=10 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$$
(Take $$2.303 \times 8.314 \times 298=5705$$ )