In the given action,

the product [X] will be:

In the reaction sequence,

In the given reaction,

In the given reaction sequence,

the final product [BJ will be:

Arrange the following compounds in the decreasing order of reactivity for hydrolysis reaction:
1)
2)
3)
4)

 The product obtained in above reaction will be :

The percentage of nitrogen in urea is:

In a packet of 40 pens, 12 are red. So, what % age are red pens?

Consider the following compounds, which of these will release CO₂ with 5% NaHCO₃ ?
i)
ii)
iii) 

Identify the product' Y' in the following reaction sequence:

In homogeneous catalytic reactions, there are three alternative paths A,B and C (shown in the figure) which one of the following indicates the relative ease with which the reaction can take place?

In a spontaneous adsorption process

Graph between log and log P is a straight line at angle 0 45 with intercept OA as shown Hence , at a pressure of 2 atm is

If and   then

Assertion : For the volume of the parallel piped formed by vectors and is maximum (The vectors form a right-handed system)
Reason: The volume of the parallel piped having three coterminous edges and

For such questions, we should know the formula of a parallelepiped. We should also know how to take a scalar product.

Assertion (A): Let . If such that is collinear with and is perpendicular to is possible, then .
Reason (R): If and are non-zero, non-collinear vectors, then can be expressed as where is collinear with and is perpendicular to