Explain The Structure and Function of Nucleus
EXPLAIN THE STRUCTURE AND FUNCTION OF Plastids .
EXPLAIN THE STRUCTURE AND FUNCTION OF Mitochondria.
Explain the Structure and Function of Ribosomes.
Explain the Structure and Function of Vacuoles.
Explain the Structure and Function of Lysosomes.
Explain the Structure and Function of Golgi Complex.
Explain the Structure and Function of ENDOMEMBRANE SYSTEM.
Explain Structure and Function of Cytoplasm and Cytoplasmic Matrix
Explain the Cell Membrane Structure and Function
In an organic compound of molar mass 108 g mol-1 C, H and N atoms are present in 9 : 1 : 3.5 by weight. Molecular formula can be:
If FE3+ and Cr3+ both are present in group III of qualitative analysis, then distinction can be made by :
A substance forms Zwitter ion. It can have functional groups :
The most stable ion is :
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Half-life of a substance A following first order Kinetics is 5 days. Starting with 100g of A, amount left after 15 days is:
A metal M forms water soluble 
and inert MO. MO in aqueouS solution forms insoluble 
soluble in NaOH. Metal M is
Cyanide process is used for the extraction of:
(a) barium (b) silver
(c) boron (d) zinc
Which of the following concentration factor is affected by the change in temperature?
Which of the following reaction is possible at anode?
On heating benzyl amine with chloroform and ethanolic KOH, product obtained is
Acetylene reacts with hypochlorous acid to form.
For the following cell with hydrogen electrodes at two different pressures P1 and P2
emf is given b
What is compound A in given below image?
Acetylene does not react with
(a) Na
(b) ammoniacal AgNO3
(c) HC1
(d) NaOH
Which of the following ions has the maximum magnetic moment?
Why 
is used in space and submarines?
What is the number of 
bonds in 
?
For an ideal gas, number of mol per liter in terms of its pressure P, temperature T and gas constant R is
Which of the following is a redox reaction?
What is difference between Prokaryotic cell and Eukaryotic cell.
Explain Cell Wall and Their Structure and Function
A bomb of mass 16 kg at rest explodes into two pieces of masses of 4 kg and 12 kg. The velocity of the 12 kg mass is 4 ms–1. The kinetic energy of the other mass is
A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle, the motion of the particle takes place in a plane. It follows that
A particle moves in a straight line with retardation proportional to its displacement. Its loss of kinetic energy for any displacement x is proportional to
A spring of spring constant 5 × 103 N/m is stretched initially by 5 cm from the unstretched position. Then the work required to stretch it further by another 5 cm is
A body is moved along a straight line by a machine delivering a constant power. The distance moved by the body in time t is proportional to
A spring of force constant 800 N/m has an extension of 5 cm. The work done in extending it from 5 cm 8. to 15cm is
If massenergy equivalence is taken into account, when water is cooled to form ice, the mass of water should
A ball whose kinetic energy is E, is projected at 6. an angle of 45° to the horizontal. The kinetic energy of the ball at the highest point of its flight will be
If No is the original mass of the substance of half-life period t1/2 = 5 years, then the amount of substance left after 15 years is:
A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m which applying the force and the ball goes upto 2 m height further, find the magnitude of the force. Consider g = 10 m/s2
A block rests on a rough inclined plane making an angle of 30° with the horizontal. The coefficient of static friction between the block and the plane is 0.8. If the frictional force on the block is 10 N, the mass of the block (in kg) is
A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped by friction in 10 s. Then the coefficient of friction is
A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49 N, when the lift is stationary. If the lift moves downward with an acceleration of 5 m/s2, the reading of the spring balance will be
Three identical blocks of masses m = 2 kg are drawn by a force F = 10.2 N with an acceleration of 0.6 ms–2 on a frictionless surface,then what is the tension (in N) in the string between the blocks B and C
A light string passing over a smooth light pulley connects two blocks of masses m1 and m2 (vertically). If the acceleration of the system is g/8, then the ratio of the masses is
One end of a massless rope, which passes over P a massless and frictionless pulley P is C tied to a hook C while the other end is free.
Maximum tension that the rope can bear is 960 N. With what value of maximum safe acceleration (in ms–2) can a man of 60 kg climb on the rope?
When forces F1, F2, F3 are acting on a particle of mass m such that F2 and F3 are mutually perpendicular, then the particle remains stationary. If the force F1 is now removed then the acceleration of the particle is
When forces F1, F2, F3 are acting on a particle of mass m such that F2 and F3 are mutually perpendicular, then the particle remains stationary. If the force F1 is now removed then the acceleration of the particle is