Answer the question on the basis of passage given below:
Second period elements of p-Block differs from the rest of their group members due to their small atomic size, high electronegativity, high ionization enthalpy and absence of d-orbitals. The elements from the second period like C, N, O have unique property of forming \(p \pi-p \pi\) multiple bonds whereas other heavier elements of p-block form \(d \pi-p \pi\) multiple bonds. This changes the properties of second period elements to great extent. Also the single bond strength of the p-block elements with their own atoms gets affected by their atomic size and presence of lone pairs.
Inert pair effect also affects the properties of the p-Block elements especially for those elements which are present from 4th period onward and this happens due to poor screening effect of inner (n-1)d subshell electrons.
The decreasing order of melting point of the following elements will be:
A. Nitrogen (N)
B. Phosphorus (P)
C. Arsenic (As)
D. Antimony (Sb)
E. Bismuth (Bi)
Choose the correct answer from the options given below:

The oxidation number of Co in the complex \(\left[ Co \left( H _2 NCH _2 CH _2 NH _2\right)_3\right]_2\left( SO _4\right)_3\) is:

Read the passage carefully and answer the questions
Carboxylic acids are the organic compounds which comprise of carboxyl functional group, -COOH. These are generally found in nature, some higher members are known as fatty acids as they occur in natural fats as esters of glycerol. They can be prepared from oxidation of alcohols and aldehydes, hydrolysis of nitriles and amides and Grignard reagents. They are stronger acids than simple phenols and alcohols. but weaker than mineral acids. Substituents affect the acidity of aliphatic and aromatic carboxylic acids. They undergo reactions involving cleavage of -OH and C-OH bond. Carboxylic acids having an alpha hydrogen get halogenated in the presence of red phosphorus to form alpha halo carboxylic acids. The reaction is known as Hell Volhard Zelinsky reaction. Besides these aromatic carboxylic acids undergo electrophilic substitution reactions. They are versatile and are employed in the manufacture of various useful compounds. For example, methanoic acid is used in rubber, textile, dyeing, leather and electroplating industries. Higher fatty acids are used in the manufacture of soaps and detergents. Esters of Benzoic acid are used in perfumery.
Esterification of carboxylic acid with alcohols or phenols is which type of reaction?

Predict the order of decreasing reactivity of the following compounds towards SN1 reaction.
(A) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Br}\)
(B) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}\left(\mathrm{C}_6 \mathrm{H}_5\right) \mathrm{Br}\)
(C) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}\left(\mathrm{CH}_3\right) \mathrm{Br}\)
(D) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{C}\left(\mathrm{CH}_3\right)\left(\mathrm{C}_6 \mathrm{H}_5\right) \mathrm{Br}\)

Which of the following reactions will give n-Propanol as a product?
(A) Hydroboration oxidation of Propene
(B) Reduction of propanal with Palladium as a catalyst
(C) Reaction of Formaldehyde with Ethylmagnesiumbromide followed by hydrolysis
(D) Acid catalyzed hydration of propene
Choose the correct answer from the options given below:

Answer the question on basis of passage given below :
A ketone \([A]\) which undergoes haloform reaction gives compound \([B]\) on reduction. Compound
\([B]\) on heating with sulphuric acid gives compound \([C]\) which forms monozonide \([D]\). The
compound \([D]\) on hydrolysis in the presence of zinc dust gives compound \([E]\). 
Compound \([E]\) on oxidation gives \(C _2 H _4 O _2\) [F]
Compound \([ F ]\left( C _2 H _4 O _2\right)\) on treatment with chlorine, in the presence of small amount of red phosphorus, gives :

Water soluble vitamins are excreted out of our body through urination. Identify the vitamin which is stored in our body for a number of years?

The capacity to generate a whole plant from any cell/explant in culture medium is called as:

A box contains 3 white and 2 red balls. If we draw one ball and without replacing the first ball, the probability of drawing red ball in the second draw is:

Match List-I with List-II

List-I (Term)	List-II (Formula/expression)
(A) Raoult's law	(I) \(\frac{p_1^{\circ}-p_1}{p_1^{\circ}}=x_2\)
(B) Henry's Law	(II) \(p_{\text {total }}=p_1^{\circ}+\left(p_2^{\circ}-p_1^{\circ}\right) x_2\)
(C) Dalton's Law of partial pressure	(III) \(p=K_{H} x\)
(D) Relative lowering of vapor pressure	(IV) \(p_2=p_2^{\circ} x_2\)

choose the correct answer from the options given below:

The molecule with largest \(C - X\) bond length is

In the electromagnetic spectrum, the visible spectrum lies between :

The strongest reducing agent amongst the following is :
(Given that \(€^{\circ}_{Ni^{2+}/Ni} = -0.25\text{ V}\), \(€^{\circ}_{Cu^{2+}/Cu} = 0.34\text{ V}\), \(€^{\circ}_{Pb^{2+}/Pb} = -0.13\text{ V}\), \(€^{\circ}_{Cr^{3+}/Cr} = -0.74\text{ V}\))