Choose the correct statements for ortho and para nitrophenol
(A) They can be separated by steam distillation
(B) o-Nitrophenol undergoes intramolecular hydrogen bonding
(C) P-Nitrophenol undergoes inter molecular hydrogen bonding
(D) p-Nitrophenol is less volatile
Choose the correct answer from the options given below:

Read the passage carefully and answer the Questions
Haloalkanes undergo nucelophilic substitution reactions owing to the polarity of CX bond. The nucleophile reacts with the haloalkane on the carbon possessing a partial positive charge holding the halogen atom. The halogen atom X is replaced by a nucleophile. Depending on the kinetics and mode of bond breaking, the mechanism can be either SN1 or SN2 reaction. The rate of SN1 reaction is governed by the stability of carbocation and in SN2 reaction, the rate of reaction is governed by steric factor. Chirality is the main factor in both SN1and SN2. In SN1 reaction, the chirality of alkyl halide is accompanied by racemization of the product, while in SN2 reaction, the product is characterized by inversion of configuration. The structure of alkyl halide and the nature of the solvent also governs the mechanism of the substitution.
Hydrolysis of 2-Chlorobutane will result in formation of

Predict the percentage of nitration products when aniline is subjected to nitration with conc. \(\mathrm{HNO}_3 /\) conc. \(\mathrm{H}_2 \mathrm{SO}_4\).

In a reaction A and B reacts to form product. The initial rate of reaction was determined using different initial concentration of A and B.

A/molL-1	0.10	0.10	0.20
\(B / mol L ^{-1}\)	0.30	0.10	0.30
\(r_o / mol L ^{-1} s^{-1}\)	\(6.81 \times 10^{-4}\)	\(2.27 \times 10^{-4}\)	\(13.62 \times 10^{-4}\)

What is the initial rate of reaction (\(r_o\)) when critical concentration of A and B is \(0.50\ mol/L\) and \(0.50\ mol/L\) respectively.

What are the number of chiral centers in the given Alkyl halide

Un-decomposed silver bromide from developed film, in black and white photography, makes a complex with hypo. The formula of the complex is

"Arrange the following in decreasing order of basic strength:
(A)\(\text{C}_6\text{H}_5\text{NH}_2\)
(B) \(\text{C}_6\text{H}_5\text{N(CH}_3\text{)}_2\)
(C) \((\text{C}_2\text{H}_5\text{)}_2\text{NH}\)
(D) \(\text{CH}_3\text{NH}_2\)
Choose the correct answer from the options given below:"

In the given circuit, \( R_1 = 6 \Omega \), \( R_2 = 3 \Omega \), \( C_1 = 4 \mu F \) and \( C_2 = 5 \mu F \). When key K is closed, the charge stored in \( C_1 \) is

Two light beams of intensities in the ratio 25:9 are allowed to interfere. The ratio of the intensities of maxima and minima will be

Match List-I with List-II

List-I (Terms)	List-II (Applications)
(A) RNA interference	(I) ADA deficiency
(B) Genetically engineered insulin	(II) \(\alpha\)-1-antitrypsin
(C) Gene therapy	(III) Meloidegyne incognitia
(D) Biological product	(IV) Eli Lilly

Choose the correct answer from the options given below:

A boat takes 1 hour 30 minutes less to travel 36 km downstream than to travel the same distance upstream.
If the speed of the boat in still water is 10 km/hr, then the speed of the stream is :

Consider the relation R in the set Z of integers which is given by \(R=\{(a, b): 2\) divides \(a-b\}\).
Choose the correct option for the relation \(R\) :

A converging lens and a diverging lens of equal focal lengths are placed coaxially in contact. The focal length and power of this combination will be