CBSE 12TH CHEMISTRY - Online Test
Q1. The following structure of protein is called
Answer : Option A
Explaination / Solution:
Tertiary structure is this structure.
Q2. One mole of an organic compound 'A' with the formula C3H8O reacts completely with two moles of HI to form X and Y. When 'Y' is boiled with aqueous alkali forms Z. Z answers the iodoform test. The compound 'A' is ______.
Answer : Option D
Explaination / Solution:
Ether react with HI to form alcohol and alkyl iodide. Alcohol on oxidation will give iodoform test.
Q3. Which among the following is soluble in water?
Answer : Option C
Explaination / Solution:
Because of hydrogen bonding.
Q4. Which of the following is a secondary amine?
Answer : Option C
Explaination / Solution:
N of this amine is bonded to two carbon atoms, therfore it is a secondary amine.
Q5. Ozone can be detected by using
Answer : Option A
Explaination / Solution:
Ozone is detected by using Hg.
Q6. Which among the following act as forth stabilizer?
Answer : Option D
Explaination / Solution:
Aniline stabalises the froath.
Q7. is The radius ratio of body centred cubic structure
Answer : Option D
Explaination / Solution:
Its Coordination No. is 8.
Q8. Identify the type of polymer. —A—B—B—A—A—A—B—A—
Answer : Option B
Explaination / Solution:
This is copolymer is polymer made up of different monomers.
Q9. How many d – block elements have ability to evolve hydrogen gas from 2% nitric acid?
Answer : Option A
Explaination / Solution:
Both Zn and Fe can displsce Hydrogen from HNO3.
Q10. The compound formed as a result of oxidation of ethyl benzene by KMnO4 is
Answer : Option B
Explaination / Solution:
