Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
The correct order for the rate of $\alpha, \beta$-dehydrohalogenation for the following compounds is:
In chloroplast, the highest number of protons are found in?
Which of the following is not a product of light reaction of photosynthesis?
Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option:
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
A rectangular coil of length $0.12 \text{ m}$ and width $0.1 \text{ m}$ having $50$ turns of wire is suspended vertically in a uniform magnetic field of strength $0.2 \text{ Wb/m}^2$. The coil carries a current of $2 \text{ A}$. If the plane of the coil is inclined at an angle of $30^\circ$ with the direction of the field, the torque required to keep the coil in stable equilibrium will be:
Which of the following is an incorrect statement?
Oxygen is not produced during photosynthesis by:
Match List-I with List-II: List-I (A) Chlorophyll a (B) Chlorophyll b (C) Xanthophyll (D) Carotenoids List-II (I) Yellow to yellow orange (II) Yellow green (III) Blue green (IV) Yellow
In leaves of C4 plants, malic acid synthesis during CO2 fixation occurs in:
Synthesis of ATP linked to development of a proton gradient across a membrane is:
The typical growth curve in plants is:
The current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V. The resistance of the galvanometer is:
Which of the following oxide is amphoteric in nature?
In Hatch and Slack pathway, the primary CO2 acceptor is -
During non-cyclic photophosphorylation, when electrons are lost from the reaction center at PS II, what is the source which replaces these electrons?
One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of:
The phenomenon by which the undividing parenchyma cells start to divide mitotically during plant tissue culture is called as :
In a mass spectrometer used for measuring the masses of ions, the ions are initially accelerated by an electric potential $V$ and then made to describe semi-circular paths of radius $R$ using a magnetic field $B$. If $V$ and $B$ are kept constant, the ratio of $\left(\frac{\text{Charge on the ion}}{\text{Mass of the ion}}\right)$ $\left(\frac{q}{m}\right)$ will be proportional to:
A constant torque of $100\text{ N m}$ turns a wheel of moment of inertia $300\text{ kg m}^2$ about an axis passing through its centre. Starting from rest, its angular velocity after $3\text{ s}$ is: