List of practice Questions

Phenomenon of Industrial Melanism demonstrates:

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

The transitional zone in between two biome is called as

The shape of cuprammonium ion is

The ratio of WBC to RBC in blood is

The ratio in a dihybrid test cross between two individuals is given by

The $pH$ value of decinormal solution of $NH_4OH$ which is $20\%$ ionised is

The $pH$ of aqueous solution of ammonium formate is $\left( p K_{a}\right.$ of $HCOOH =3.8$ and $pK _{b}$ of $\left.NH _{3}=4.8\right)$