NEET Test 131...

Calculate the enthalpy of the formation of H₂O. Is the reaction an exothermic or endothermic reaction?

A bus starts to move with an acceleration of 1 m/s². A man, who is 48 m behind the bus, runs to catch it with a constant velocity of 10 m/s. In how much time will he catch the bus? 

A particle is projected vertically with speed V from the surface of the earth. Maximum height attained by the particle, in terms of the radius of earth R,V and g is (V escape velocity, g is the acceleration due to gravity on the surface of the earth).

In which of the following, gametophyte is not independent free living?

Two cars A and B travel along the same road in the same direction from the same starting place. Car A maintains a speed of 50 km/h and car B of 60 km/h, but B starts one hour later. How many hours will it take for B to overtake A?

A particle moves along x-axis in such a way that its coordinate (x) varies with time (t) according to the expression, x = 2 − 5t + 6t². Then the initial velocity of the particle is

Chemically hormones are:

A feather is dropped on the moon from a height of 1.40 meters. The acceleration due to gravity on the moon is 1.67 m/s². Determine the time for the feather to fall to the surface of the moon. (in s):

A bar magnet is dropped between a current carrying coil. What would be its acceleration?

To detect the reducing and non reducing sugars, which of the following test is used?