The product (Y) in the following reaction is
\(\text{2 C}_6\text{H}_5\text{CHO} \xrightarrow[\text{Heat}]{\text{conc. NaOH}} \text{Y} + \text{C}_6\text{H}_5\text{COONa}\)

The product of the following chemical reaction is
Glucose \(\xrightarrow{ Br _2 \text { water }}\)

Answer the question on the basis of passage given below :
There are three kinds of amines which are primary, secondary and tertiary amines. These amines may have alkyl group or aryl group or both alkyl and aryl groups. These amines can be distinguished from one another by various chemical tests.
Which of the following amines when treated with chloroform and KOH give foul smelling substance. A is:
A. a primary amine
B. secondary amine
C. tertiary amine
D. aniline

\(\text{t}_{99.9\%}\) with respect to \(\text{t}_{90\%}\) for a first order reaction 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:

Select the appropriate reagent for the synthesis of tert-Butyl ethyl ether

In aldehydes, the carbonyl group is bonded to a carbon and hydrogen, while in ketones it is bonded to two carbon atoms. The carbonyl compounds in which carbonyl group is bonded to oxygen are known as carboxylic acid and their derivatives.
1,3-Diphenylprop-2-en-1-one is produced by the following.

Which of the following inequalities holds true?
(A) \(\sqrt{5}+\sqrt{3}>\sqrt{6}+\sqrt{2}\).
(B) If \(a>b\) and \(c<0\), then \(\frac{a}{c}<\frac{b}{c}\).
(C) \(\frac{1}{x^2}>\frac{1}{x}>1\), if \(0<x<1\).
(D) If \(a\) and \(b\) are positive integers and \(\frac{a-b}{6.25}=\frac{4}{2.5}\), then \(b>a\).
Choose the correct answer from the options given below:

If v is the frequency of ac mains, then the frequency of sonometer wire at resonance is :

An astronomical telescope uses an objective lens of focal length 30 cm. In normal adjustment, distance between the two lenses is 32 cm. The magnifying power of telescope is:

A person has purchased a home for Rs. 10,00,000 with a down payment of Rs. 2,00,000. He amortizes the balance at 9% per annum compounded monthly for 25 years.
Then the equal monthly instalment (EMI) is :
[Given that \(\frac{(1.0075)^{300}-1}{(0.0075)(1.0075)^{300}}=119.1616\) ]

Match List - I with List - II.

List - I	List - II
(A) Buna-S	(I) Vinyl chloride
(B) Neoprene	(II) 1,3-Butadiene and styrene
(C) PVC	(III) Tetra flouroethene
(D) Teflon	(IV) Chloroprene

Choose the correct answer from the options given below :

Which of the following is a man-made ecosystem?