A nuclear fusion lab requires very high temperature for the fusion reaction to take place. Mr X says, “The temperature at Sun’s surface is around 6000 K. We can use advanced lenses/mirrors to focus Sun’s rays and get temperature much higher than 6000 K. Mr Y disagrees. Who is right?
(A) Mr X
(B) Mr Y
(C) Information is insufficient to answer
Consider the following reaction:
The values of x, y and z in the reaction are, respectively:
(1) 5, 2 and 16 (2) 2, 5 and 8 (3) 2, 5 and 16 (4) 5, 2 and 8
[JEE Main 2013]
The video embedded below contains some problems & solutions from Solid State. Full-screen HD video setting is recommended for playback or this link can be used.
Continue reading Solid State Applications
The total number of carboxylic acid groups in the product P
is
[JEE Advanced 2013]
The video is embedded below. Continue reading Class 01 – Alkyl Halide
Problem
In the reaction,
the time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure. The overall order of the reaction is
(A) 2 (B) 3
(C) 0 (D) 1
Continue reading Order of Reaction $$P + Q \to R + S$$
The O – N – O bond angle in NO2 is around 134°. One way to explain this is by making use of resonance structure and hybridisation theory. Let us consider the following resonance structure of NO2:
Continue reading Bond Angle in $$NO_2$$ and Hybridisation
