Which of the following statements is incorrect?

Which one of the following correctly represents the concentration term 'ppm'?

From the following, choose the one which are not secondary haloalkanes :
(A) 2-Bromopentane
(B) 1-Bromo-3-methylbutane
(C) 3-Bromopentane
(D) 2-Bromo-2- methylbutane
(E) 2-Bromo-3-methylbutane
Choose the correct answer from the options given below :

Match List-I with List-II

List-I (Components of binary solution)	List-II (Deviation from Raoult's Law)
(A) Ethanol and water	(I) Positive
(B) Chloroform and acetone	(II) No deviation
(C) n-Hexane and n-heptane	(III) Negative
(D) Carbon disulphide and acetone	(IV) Large positive
(D) Carbon disulphide and acetone	(IV) Large positive

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Arrange the following in increasing order of the mass of the metal deposited when 1 amp of current is passed through their electrolytic solutions for 1 minute
(A). Al (atomic mass = 27 g/mol)
(B). Mg (atomic mass = 24 g/mol)
(C). Ag (atomic mass = 108 g/mol)
(D). Cu (atomic mass = 63.5 g/mol)
Choose the correct answer from the options given below:

Match List - I with List - II.

List - I	List - II
(A) Raoult's Law	(I) \(\pi=C R T\)
(B) Henry's Law	(II) \(P=x_1 p_1^0+x_2 p_2^0\)
(C) Elevation in Boiling point	(III) \(P=K_H x\)
(D) Osmotic Pressure	(IV) \(\Delta T_b=k_b m\)

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A 0.5 M aqueous \(\mathrm{H}_2 \mathrm{SO}_4\) solution is diluted from 2 litres to 20 litres. The concentration of the resulting solution will be

Which of the following reaction mechanism is involved in Williamson synthesis?
\(R - X + R ^{\prime}- O - N a \rightarrow R - O - R ^{\prime}+ N a X\)
If \(\text{R} = \text{CH}_3\).

Match List-I with List-II

List-I	List-II
(A) \(S _{ N } 2\)	(I) Racemization
(B) Iodoform	(II) Ozone depletion
(C) \(S _{ N } 1\)	(III) Antiseptic
(D) Carbon tetrachloride	(IV) Inversion

Choose the correct answer from the options given below:

Read the passage carefully and answer the Questions
Werner in 1898, propounded his theory of coordination compounds. In coordination compounds metals show two types of linkages (valences)-primary and secondary. The primary valences are normally ionisable and are satisfied by negative ions. The secondary valences are non-ionisable. These are satisfied by neutral molecules or negative ions. The secondary valence is equal to the coordination number and is fixed for a metal. The ions or group bound by the secondary linkages to the metal have characteristic spatial arrangements corresponding to the different coordination numbers. Both double salts as well as complexes are formed by the combination of two or more stable compounds in stoichiometric ratio. However, they differ in the fact that double salts such as carnallite, Mohr's salt, potash alum etc. dissociate into simple ions completely when dissolved in water. But complex ions do not dissociate completely into simple ions.
Which of the following statement is correct as per Werner theory?

Match List-I with List-II:

List-I (Physical quantity)	List-II (Formula)
(A) Width of a central maximum	(I) 2\(\lambda\)/a
(B) Fringe width	(II) a\(^2\)/\(\lambda\)
(C) Fresnel's distance	(III) 2D\(\lambda\)/a
(D) Angular speed of central maximum	(IV) D\(\lambda\)/d

Choose the correct answer from the options given below:

\( (1/16) \)th of the initial amount of a certain radio-active isotope remains undecayed after two hours. The half life of the isotope would be :

The order of the differential equation of the family of curves \(y^2=4 a(x+a)\) where a is an arbitrary constant is :