List of practice Questions

In Wolff-Kishner reduction, the carbonyl group of aldehydes and ketones is converted into
Which of the following is a transition elements ?
The structure of white phosphorus is
In the following four elements,the ionization potential of which one is the highest ?
The last member of the family of inert gases is
Which of the following statements(s) is (are) correct?
During paddling of a bicycle, the force of friction exerted by the ground on the two wheels is such that it acts
Two bodies A and B have thermal emissivities of 0.01 and 0.81 respectively. The outer surface areas of the two bodies are the same. The two bodies emit total radiant power at the same rate. The wavelength $\lambda_B$ corresponding to maximum spectral radiancy in the radiation from B shifted from _the wavelength corresponding to maximum spectral radiancy in the radiation from A, by 1.00 pm. If the temperature of A is 5802 K.
A particle of mass $m$ is moving in a circular path of constant radius $r$ such that centripetal acceleration $a_{c}$ varying with time is $a_{c}=k^{2}\, r \,t^{2}$ where $k$ is a constant. What is the power delivered to the particle by the force acting on it?
Centromere is required for
The metal always found in free state is
Synthetic human hairwigs are made from a copolymer of vinyl chloride and acrylonitrile, and is called
The pyramid which cannot be inverted in a stable ecosystem is that of
A sphere collides with another sphere of identical mass. After collision, the two spheres move. The collision is inelastic. Then the angle between the directions of two spheres is
A hollow metallic cylinder is heated. Then its internal diameter
At what height over the earth's pole, the free fall acceleration decreases by $1%$. (Assume the radius of earth to be $6400 km$)
Which of the following is the function of enterogastrone?
If the gravitational force between two objects were proportional to $ 1/R $ (and not as $ 1/R^2 $ ), where R is the distance between them, then a particle in a circular path (under such a force) would have its orbital speed v, proportional to
A solid spherical ball rolls on a table. Ratio of its rotational kinetic energy to total kinetic energy is
A satellite in force free space sweeps stationary interplanetary dust at a rate of $ dM/dt = \alpha v $ , where M is mass and v is the speed of satellite and $\alpha$ is a constant. The acceleration of satellite is
Each sentence is broken into four parts. Identify the part with an error.
Each sentence is broken into four parts. Identify the part with an error.
Each sentence is broken into four parts. Identify the part with an error.
Each sentence is broken into four parts. Identify the part with an error.
Each sentence is broken into four parts. Identify the part with an error.