Chemistry - Online Test

Q1. The cation leaves its normal position in the crystal and moves to some interstitial position, the defect in the crystal is known as
Answer : Option C
Explaination / Solution:
No Explaination.


Q2. Insulin, a hormone chemically is
Answer : Option C
Explaination / Solution:
No Explaination.


Q3. If 75% of a first order reaction was completed in 60 minutes , 50% of the same reaction under the same conditions would be completed in
Answer : Option B
Explaination / Solution:

t75% = 2t50%

t50% = (t75% / 2) = (60/2) = 30 min


Q4. Which of the following relation is correct for degree of hydrolysis of ammonium acetate?
Answer : Option C
Explaination / Solution:

 h= √{ (Kh) / (Ka .Kb) }

Q5. Which of the following plot gives Ellingham diagram
Answer : Option B
Explaination / Solution:
No Explaination.


Q6. A certain current liberated 0.504gm of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time through copper sulphate solution
Answer : Option B
Explaination / Solution:
No Explaination.


Q7. The most common oxidation state of actinoids is
Answer : Option C
Explaination / Solution:
No Explaination.


Q8. An alkene “A” on reaction with O3 and Zn - H2O gives propanone and ethanol in equimolar ratio. Addition of HCl to alkene “A” gives “B” as the major product. The structure of product “B” is
Answer : Option C
Explaination / Solution:



Q9. Identify X in the sequence given below.

Answer : Option A
Explaination / Solution:
No Explaination.


Q10.

Assertion: due to Frenkel defect, density of the crystalline solid decreases.

Reason: in Frenkel defect cation and anion leaves the crystal.
Answer : Option D
Explaination / Solution:
No Explaination.