List of practice Questions

Hormone that opposes apical dominance is
The dissociation equilibrium of a gas $ AB_2 $ can be represented as $2 A B_2(g) \rightleftharpoons 2 A B (g) + B_2 (g) $ The degree of dissociation is $x$ and is small compared to $1$. The expression relating the degree of dissociation (x) with equilibrium constant $K_p$ and total pressure $p$ is
About 70% of total global carbon is found in
World Summit on Sustainable Development (2002) was held in
Which of the following are not state functions? (I) q + W (II) q (III) w (IV) H-TS
Two stones are projected with the same speed but making different angles with the horizontal. Their horizontal ranges are equal. The angle of projection of one is $\pi / 3$ and the maximum height reached by it is $102\, m$. Then the maximum height reached by the other in metre is
If the earth shrinks such that its mass does not change but radius decreases to one quarter of its original value then one complete day will take
Standard free energies of formation (in kj/mol) at 298 K are -237.2, -394.4 and -8.2 for $H_2O(l),CO_2(g) $ and pentane (g), respectively. The value of $E^0_{cell} $ for the pentane-oxygen fuel cell is
The angle of incidence of light is equal to Brewster's angle, then (A) reflected ray is perpendicular to refracted ray (B) refracted ray is parallel to reflected ray (C) reflected light is polarized having its electric vector in plane of incidence (D) refracted light is polarized
If uncertainty in position and momentum are equal, then uncertainty in velocity is
Dry indehiscent single-seeded fruits formed from bicarpellary syncarpous inferior ovary is
In humans blood passes from post caval to the diastolic right atrium of heart due to
A point performs simple harmonic oscillation of period T and the equation of motion is given by $x = a \sin(\omega t + \pi/6).$ After the elapse of what fraction of the time period the velocity of the point will be equal to half of its maximum velocity?
Two periodic waves of intensities $I_1$ and $I_2$ pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is
Equal volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What will be the $ H^+ $ ion concentration in the mixture?
The angular amplitude of a simple pendulum is $\theta_{0}$. The maximum tension in its string will be
An engine pumps up $100 \,kg$ of water through a height of $10\, m$ in $5 s$. Given that the efficiency of engine is $60 \%$. If $g=10\, ms ^{-2}$, the power of the engine is
The slow rate of decomposition of fallen logs in nature is due to
Unisexuality of flowers prevents
Which one of the following is not observed in biodiversity hotspots ?
Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in
Endosperm is consumed by developing embryo in the seed of ....
The coefficient of $ {{x}^{r}} $ in the expansion of $ {{(1-x)}^{-2}} $ is
$ 3a{{\int_{0}^{1}{\left( \frac{ax-1}{a-1} \right)}}^{2}}\,\,dx $ is equal to
The number of solutions of $ \sin x=\sin 2x $ between $ \frac{-\pi }{2} $ and $ \frac{\pi }{2} $ is