$AlCl_3$ is ...

The major product of the following reaction is

In the diagram,the input is across the terminals $A$ and $C$ and the output is across the terminals $B$ and $D$. Then the output is

Which of the following are fused in somatic hybridization involving two varieties of plants?

Two identical balls $A$ and $B$ are released from the positions shown in figure. They collide elastically on the horizontal portion $MN$. The ratio of the maximum height attained by $A$ and $B$ after the collision will be: (neglect friction)

$A$ beaker contains $200\, g$ of water. The heat capacity of the beaker is equal to that of $20\, g$ of water. The initial temperature of water in the beaker is $20^\circ C$. If $440\, g$ of hot water at $92^\circ C$ is poured into it,the final temperature (neglecting radiation loss) will be nearest to $^\circ C$.