Chemistry - Online Test

Q1. The correct difference between first and second order reactions is that
Answer : Option B
Explaination / Solution:

For a first order reaction

t1/2 = 0.6932/k

For a second order reaction




Q2. Which of the following reduction is not thermodynamically feasible?
Answer : Option B
Explaination / Solution:
No Explaination.


Q3.

Cell equation : A + 2B- A2+ +2B;

A2+ + 2e A  ; Eº = + 0.34V and log10K = 15.6 at 300K for cell reactions find E for B+ + e B
Answer : Option A
Explaination / Solution:
No Explaination.


Q4. Which one of the following is not correct?
Answer : Option A
Explaination / Solution:
No Explaination.


Q5. The major product of the following reaction

Answer : Option B
Explaination / Solution:
No Explaination.


Q6. A two dimensional solid pattern formed by two different atoms X and Y is shown below. The black and white squares represent atoms X and Y respectively. the simplest formula for the compound based on the unit cell from the pattern is

Answer : Option A
Explaination / Solution:
No Explaination.


Q7. Which of the following amino acids are achiral?
Answer : Option D
Explaination / Solution:
No Explaination.


Q8. After 2 hours, a radioactive substance becomes (1/16)th of original amount. Then the half life ( in min) is
Answer : Option C
Explaination / Solution:


4t1/2 = 2 hours

t1/2 = 30 min


Q9. Which of the following is not true with respect to Ellingham diagram?
Answer : Option B
Explaination / Solution:
No Explaination.