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 pkb value than aliphatic amines. Basic strength of amines also depends on stability of corresponding conjugate acid in aqueous medium.
'A' compound is treated with Hinsenberg's reagent, subsequent additiom of alkali to it gives a clear solution. Compound ' A ' 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 sugar moiety in DNA and RNA molecules, respectively, are

The product in the following reaction is

Match List - I with List - II.

List - I (Names of Vitamin)	List - II (Deficiency Diseases)
(A) Vitamin A	(I) Night blindness
(B) Vitamin B12	(III) Pernicious anaemia
(C) Vitamin C	(IV) Scurvy
(D) Vitamin D	(II) Rickets

Choose the correct answer from the options given below :

What is the product formed when tertiary alcohol is treated with alkaline \(KMnO _4\) at elevated temperature?

"The average osmotic pressure of human blood is \(7.8\ atm\) at \(27\ degree C\).
 The concentration of aqueous \(NaCl\) solution that can be used in the bloodstream is:
(Given \(R = 0.082\ L\ atm\ K^{-1}\ mol^{-1}\))"

In Octahedral coordination entities :

The domain of \(y=\cos ^{-1}\left(x^2-4\right)\) is

The marginal cost (MC) and marginal revenue (MR) functions of a product are \(M C=20+\frac{x}{20}\) and \(M R=30\) respectively. If the fixed cost is 200 , then the maximum value of the profit is :

For a maximizing LPP, the constraints are:

Three particles, each having a charge of \( 10 \, \mu\text{C} \), are placed at the vertices of an equilateral triangle of 10 mm. Find the work done by a person in pulling them apart to infinite separation.

The variance of the Binomial Distribution \(B\left(5, \frac{1}{4}\right)\) is:

Two long and parallel straight wires, each carrying current \(I\) in the same direction, are separated by a distance of 40 cm. If the force of attraction per metre between them is \(2 \times 10^{-6} \text{ N/m}\), the value of \(I\) will be: (Given: \(\mu_0 = 4\pi \times 10^{-7} \text{ T}⋅­­m⋅­­A^{-1}\))