An aqueous solution of urea has a freezing point of \(\text{– } 0.52^{\circ}\text{C}\). Predict the osmotic pressure of the solution at \(37^{\circ}\text{C}\) [\(K_f = 1.86\), assuming that the molar concentration and molality are numerically equal]

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 correct increasing order of basic strength of amine is :
(A) \(\text{C}_6\text{H}_5\text{NH}_2 < \text{NH}_3 < \text{C}_6\text{H}_5\text{CH}_2\text{NH}_2 < \text{C}_2\text{H}_5\text{NH}_2 < (\text{C}_2\text{H}_5)_2\text{NH}\)
(B) \(\text{NH}_3 < \text{C}_6\text{H}_5\text{NH}_2 < \text{C}_6\text{H}_5\text{CH}_2\text{NH}_2 < \text{C}_2\text{H}_5\text{NH}_2 < (\text{C}_2\text{H}_5)_2\text{NH}\)
(C) \(\text{C}_6\text{H}_5\text{CH}_2\text{NH}_2 < \text{C}_6\text{H}_5\text{NH}_2 < \text{NH}_3 < \text{C}_2\text{H}_5\text{NH}_2 < (\text{C}_2\text{H}_5)_2\text{NH}\)
(D) \(\text{C}_2\text{H}_5\text{NH}_2 < (\text{C}_2\text{H}_5)_2\text{NH} < \text{C}_6\text{H}_5\text{NH}_2 < \text{NH}_3\)
Choose the correct answer from the options given below :

\(\alpha\)-D(+) Glucose and \(\beta\)-D(+) Glucose are

When blood cells are placed in 1\(\%\) (w/v) \(\text{NaCl}\) aqueous solution :

Bases of RNA are -

For (i) \(I^-\) (ii) \(Cl^-\)(iii) \(Br^-\), the usual increasing order of nucleophilicities would be

Which one of the mentioned characters does not represent the true breeding line?

The rupturing of RBCs is associated with release of a toxic substance known as:-

Which of the following hormone is released by pancreas and regulates body metabolic pathway?

Area of the region bounded by \(y=-1, y=2, x=y^3\) and \(x=0\) is :

Read the passage carefully and answer
Carbohydrates are essential for both plants and animals. Some common examples of carbohydrates are glucose, fructose, sucrose, glycogen, cellulose and starch. They form a major portion of our food. Honey has been used for a long time as an instant source of energy in Ayurvedic medicine. Carbohydrates are used as storage molecules in both plants and animals. The cell wall of bacteria and plants is made of cellulose. We use cellulose in the form of wood for making furniture and as cotton fiber for clothing. They also provide raw material for textiles, paper, lacquers, and breweries. Carbohydrates are classified as Monosaccharides, Oligosaccharides and Polysaccharides on the basis of their behavior towards hydrolysis.
Monosaccharides cannot be hydrolyzed further to simpler units whereas oligosaccharides can yield 2-10 units of monosaccharides on hydrolysis. Polysaccharides, which are non-sugars yield a large number of monosaccharide units on hydrolysis.
Answer the following questions about carbohydrates:
Animal starch is popularly known as

RNA polymerase III is responsible for transcription of -