Match List-I with List-II

List-I	List-II
(A) Freons	(I) Paint remover
(B) DDT	(II) Refrigeration
(C) Dichloromethane	(III) Fire extinguisher
(D) Tetrachloromethane	(IV) Insecticide

Choose the correct answer from the options given below :

Copper can be extracted from:
(A) Cryolite
(B) Malachite
(C) Calamine
(D) Copper glance
(E) Cuprite
Choose the correct answer from the options given below :

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:

Read the passage carefully and answer the questions.
Amines are considered to be derivatives of ammonia obtained by replacement of hydrogen atoms with alkyl or aryl groups. They are usually prepared from nitro compounds, halides, amides, imides etc. The presence of hydrogen bonding influences its physical properties. In alkylamines, a combination of electron releasing steric and hydrogen bonding factors influences the stability of substituted ammonium cations in protic polar solvents and thus affects the basic nature of amines. Alkyl amines are found to be stronger bases than ammonia which is more basic than water. Primary and secondary amines are engaged in intermolecular association due to hydrogen bonding. This intermolecular association is more in primary amines than in secondary amines. Tertiary amines do not have intermoleulcar association due to the absenceof hydrogen atom available for hydrogen bonding. Thus, the boiling point of amines depends on hydrogen bonding. In aromatic amines, electron releasing and withdrawing groups increase and decrease their basic character. Aryl diazonium salts usually obtained from arylamine undergo replacement of the diazonium group with a variety of nucleophile. Their coupling reaction of aryl diazonium salts with phenol or arylamine results in formation of dyes.
The most basic species in the following is

Read the passage carefully and answer the questions:
Optically active polyhydroxy aldehydes or ketones or molecules which provide such units on hydrolysis are called carbohydrates. They can be broadly classified as monosaccharides, disaccharides and polysaccharides depending on their behavior towards hydrolysis. They are also classified as reducing or non-reducing sugars. Another class of biomolecules is proteins which are polymers of twenty different amino acids linked by peptide bonds. Amino acids can be classified as acidic, basic or neutral depending on the relative number of amino and carboxyl groups in their molecule. The essential amino acids cannot be synthesized by our body and hence must be provided through diet. Nucleic acids are the polymers of nucleotides which in turn consist of a base, pentose sugar and phosphate. There are two types of nucleic acids namely, DNA and RNA which differ in the composition of sugar and a base
The side chain (R group) present in the "Aspartic Acid" amino acid is:

A solution of \(CuSO _4\) is electrolyzed for 1 minute with a current of 1 ampere. Given the atomic mass of Cu as \(63 g mol ^{-1}\), the mass of copper deposited at the cathode is

During bromination of phenol, Lewis acid is not necessary required because of :

Why must the reacting molecules have a minimum energy for an effective collision?

Exponential growth rate of a population is graphically represented by -

If \(x y=e^{(x-y)}\), then \(\frac{d y}{d x}\) is equal to:

Which of the following is caused due to substitution of glutamic acid to valine on 6th position of B-globin chain of Haemoglobin molecule ?

The self-inductance (L) of a long solenoid on doubling its number of turns and length, keeping other factors constant, will become

The function \(f: R \rightarrow R , f(x)=x^2\) is