Amines are reactive in nature, mainly due to difference in electronegativity between Nitrogen and Hydrogen and, due to lone pair of electrons on Nitrogen. Amines behave like nucleophiles and as good lewis bases and there are various reactions to support this. Different degree of amines differ in their reactivity due to steric hinderance and electronic effects. Aromatic amines are less basic due to + R effect, hence have higher pk value than aliphatic amines. Basic strength of amines also depends on stability of corresponding conjugate acid in aqueous medium.
Conjugate acid of which of the following amines is most stable?

Which of the following methyl halide will have the highest value of dipole moment?

Match List-I and List-II

List-I	List-II
A. Alchohol + water	I. Ideal solution
B. Benzene + Toluene	II. Positive deviation
C. Water + Nitric acid	III. Negative deviation

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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
"Maltose" disaccharide is composed of:

\(V_2 O _6\) catalyst is used in the manufacturing of

Arrange the following compounds in increasing order of their acidic character.
(A) m-nitrophenol
(B) p-nitrophenol
(C) Phenol
(D) p-methoxyphenol
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For a chemical reaction with a rise in temperature by \(10^{\circ} C\), the rate constant becomes nearly

Which of the following are the parts of mammary glands?
(A) Lactiferous duct
(B) Ampulla
(C) Areola
(D) Acrosome
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The general solution of the differential equation \(\frac{d y}{d x}=x y+x+y+1\) is

A body of mass 20 g and charge \( +50 \text{ }\mu\text{C} \) is suspended from the ceiling by a string. A horizontal electric field of 10 kV/m is applied.
The angle between the string and the vertical direction is :

De Vries gave his mutation theory on organic evolution while working on-

Match List I with List II

LIST I	LIST II
A. Gatterman-Koch reaction	I. Diphenyl
B. Stephens reaction	II. Ethyl amine
C. Hoffmann Bromamide degradation	III. Benzaldehyde
D. Fittig reaction	IV. Acetaldehyde

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The greatest integer function defined by \(f(x)=[2 x], 0 < x < 2\)