List of practice Questions

The element ${ }_{90} Th ^{232}$ belongs to thorium series. Which of the following will act as the end product of the series?

Sea fan belongs to:

Pigment anthocyanin is located in:

$ PCl_{3} $ and cold water reacts to produce which of the following?

Of the vectors given below, the parallel vectors are, $ A = 6 \hat i + 8 \hat j$ $30mm B = 210 \hat i + 280 \hat k$ $ C = 0.3 \hat i + 0.4 \hat j$ $ D = 3.6 \hat i + 6 \hat j + 4.8 \hat k$

Nucleolus is formed by

Nitrobenzene on treatment with zinc dust and aqueous ammonium chloride gives

Myelin sheath is found in

Murrah is productive breed of

Methyl- $\alpha-D$-glucoside and methyl $-\beta-D$-glucoside are

Which of the following is the simplest amino acid?

Kappa particles indicate:

Internal bisector of $\angle$ A of AABC m eets side BC at D. A line drawn through D perpendicular to AD in tersects the side AC a t E an d side AB at F. If a , b, c represent sides of $\triangle$ ABC, then

In radius of a circle which is inscribed in a isosceles triangle one of whose angle is $ 2 \pi / 3, \, is \, \sqrt 3 $, then area of triangle (in sq units) is

The value of $\int \limits \frac {(x^2-1)dx}{x^3 \sqrt {2x^4-2x^2+1}} $ is

Cricket bat is made from the wood of:

When calcium acetate is distilled, it will produce which of the following compound?

Which of the following electronic configuration represents noble gas?

The time of reverberation of a room $A$ is one second. What will be the time (in seconds) of reverberation of a room, having all the dimensions double of those of room $A$ ?

Both sickle cell anaemia and Huntington? chorea are

A tuning fork $A$ produces $4$ beats per second with another tuning fork $B$ of frequency $320\, Hz$. On filing one of the prongs of $A, 4$ beats per second are again heard when sounded with the same fork $B$. Then the frequency of the fork $A$ before filing is

Which among the following species have the same number of electrons in its outermost as well as penultimate shell?

$C_{6} H_{5}-C H=C H C H O \xrightarrow{X} C_{6} H_{5} C H=C H C H_{2} O H$ In the above sequence $X$ can be:

For a reaction $H _{2}+ I _{2} \rightleftharpoons 2 HI$ at $721\, K$, the value of equilibrium constant is $50$. If $0.5$ moles each of $H_{2}$ and $I_{2}$ is added to the system, the value of equilibrium constant will be:

The ability of a given substance to assume two or more crystalline structure is called :