Consider the following statements about the physical and chemical characteristics of interstitial compounds and identify the correct statements
(A) They have high melting points.
(B) They are very hard.
(C) They retain metallic conductivity.
(D) They are chemically very reactive.
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The properties which depend on the number of solute particles irrespective of their nature relative to the total number of particles in the solution are called colligative properties. These are relative lowering of vapour pressure of the solvent, depression of freesing point of the solvent, elevation of boiling point of the solvent and osmotic pressure of the solution. All of these properties help in calculating the observed molar mass of the solute.
Determination of osmotic pressure is considered best for the determination of molecular mass of the solute.
The binary liquid mixtures which show negative deviation from Raoult's law are :
(A) n-hexane and n-heptone
(B) phenol and acetone
(C) ethanol and acetone
(D) chloroform and acetone
(E) benzene and toluene
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Match List-I with List-II

List-I	List-II
(A) D	(I) Loss of blood clotting
(B) C	(II) Rickets
(C) \(B_6\)	(III) Scurvy
(D) K	(IV) Convulsions

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In Henry's law, the partial pressure of gas in the vapor phase is proportional to:

Arrange the following ligands in decreasing order of field strength in spectrochemical series.
(A) Br\(^-\)
(B) H\(_2\)\(\mathrm{O}\)
(C) OH\(^-\)
(D) CO
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Identify the essential amino acids from the following.
(A) Threonine
(B) Serine
(C) Histidine
(D) Lysine
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A' \(+ H _2 O / H\) _________ ' \(B\) ' \(+ N a O H + C a O\) _________ Benzene
The compound ' A ' is:

The number of all possible matrices of order \(2 \times 3\) with each entry 0 or 1 is:

The value of \(\left|\begin{array}{lll}1 & b & c+a \\ 1 & c & a+b\end{array}\right|\) is

Two point charges placed a distance d apart in vacuum exert a force of magnitude F on each other. One of the two charges is doubled. To keep the magnitude of force same the separation between the charges should be changed to

The above reaction is an example of

The lines \(\frac{x}{1}=\frac{y}{2}=\frac{z}{3}\) and \(\frac{x-3}{-3}=\frac{y-4}{-6}=\frac{z-5}{-9}\) are :

A circular coil with 5 turns, each of radius 7 cm, carries a current of 1.4 A. The magnetic field at the center of the coil is: