List of practice Questions

92U235, nucleus absorb a neutron and disintegrate in 54Xe139, 38Sr94 and x So, What will be the product x 

For a cell terminal potential difference is 2.2 V when circuit is open and reduces to 1.8 V when cell is connected to a resistance of $R = 5\, \Omega$. Determine internal resistance of cell (r) is then :-

Cellulose is polymer of 

Reactivity order of halides for dehydrohalogenation is :-
A and B are two conductors carrying a current I in the same direction, $x$ and $y$ are two electron beams moving in the same direction.
A superconductor exhibits perfect
A convex lens is made up of three different materials as shown in the figure. For a point object placed on its axis, the number of images formed are
In the silver plating of copper, $K[AG(CN)_2]$ is used instead of $AgNO_3. $ The reason is :-
In borex bead test which compound is formed
van der Waals' real gas, act as an ideal gas, at which condition :-
Which reaction is not feasible :-

3A → 2B,rate of reaction +d[B]/dt is equals to 

The velocity of the electromagnetic waves is parallel to : 

To convert a galvanometer into a voltmeter one should connect a : -
The SI unit of radioactivity is
The variation of the intensity of magnetisation (I) with respect to the magnetising field (H) in a diamagnetic substance is described by the graph
Which has highest pH:-

The solubility of MX2–type electrolytes is 0.5 × 10–4 Mole/lit. then find out the Ksp of electrolytes :

In nuclear fission the percentage of mass converted into energy is about
A solution containing components A and B follows Raoult's law : -

1 M and 2.5 litre NaOH solution mixed with another 0.5 M and 3 litre NaOH solution. Then find out molarity of resultant solution 

The heat of neutralization of a strong base and a strong acid is $57 kJ .$ The heat released when $0.5$ mole of $HNO _{3}$ solution is added to $0.20 moles$ of $NaOH$ solution, is

Unit of entropy is 

2 mole of ideal gas at 27ºC temp. is expanded reversibly from 2 lit. to 20 lit. Find entropy change (R = 2 cal/mol K) 

In $NO_3^-$ ion number of bond pair and lone pair of electrons on nitrogen atom are :-