List of practice Questions

Which of the following secrets a horny exoskeleton ?

Red lead is an example of:

Red rust of tea is caused by:

Plant decomposers are

Photorespiration, usually occurs in

Phenomenon of Industrial Melanism demonstrates:

Optical fibre are based on

Longest phase in M.phase of cell cycle is

The triangle formed by the tangent to the curve $f(x)=x^2+bx-b$ a t the point (1,1) and the coordinate axes, lies in the first quadrant. If its area is 2 sq units, then the value of b is

Dimension of resistivity is

Blackman? law is related to

Wounds heal slowly due to vitamin C deficiency Vitamin C is essential for collagen formation.

Anaerobic respiration in animals produces:

Which of the following is aromatic?

Which of the following is correct about nematocyst?

Which of the following molecule or ions is a bidentate ligand?

Which of the following statements is not true about alcohols?

X-ray beams are affected by

Which of the following elements exhibits the most basic properties ?

Which molecule Which molecule has clover leaf like structure?

For $14\, g$ of $CO$ the wrong statement is :

The dissociation values of four acids are as follows which of the above value is stands for strongest acid:

Tricarpellary, syncarpous, inferior ovary is found in the family

Three rods made of the same material and having the same cross-section have been joined as shown in the figure. Each rod is of the same length. The left and right ends are kept at 0$^{\circ}$C and 90$^{\circ}$C respectively. The temperature of junction of the three rods will be

Three positive charges of equal value q are placed at the vertices of an equilateral triangle. The resulting lines of force should be sketched as in