CBSE 12TH CHEMISTRY - Online Test
Q1. In pressure cooker boiling point of water
Answer : Option A
Explaination / Solution:
As pressure increases boiling point also increase.
Q2. Arrange the following compounds in order of increasing boiling point:
Answer : Option C
Explaination / Solution:
This is on the basis of inter molecular interactions.
Q3. Which colour is given by CuSO4 with ammonia?
Answer : Option A
Explaination / Solution:
Q4. Which among the following act as flux , if iron oxide is present as an impurity?
Answer : Option D
Explaination / Solution:
Iron oxide is basic oxide so flux should be acidic.
Q5. Which among the following is an example of non – polar molecule?
Answer : Option A
Explaination / Solution:
Methane is a symmetrical.
Q6. Which of the following polymer can be formed by using the monomer unit represented below?
Answer : Option D
Explaination / Solution:
Nylon – 6, 6 Caprolactum is monomer of nylon 6.
Q7. The production of oxidation of I– withMnO4−− in acidic medium is
Answer : Option C
Explaination / Solution:
In acidic medium I− oxidizes to I2
Q8. Reduction of aldehydes and ketones into hydrocarbons using zinc amalgam and conc. HCl is called
Answer : Option C
Explaination / Solution:
Clemmenson is the reaction of carbonyl compounds with Zn amalgam in presence of conc. HCl to convert them to alkanes.
Q9. The complex with highest stability constant at 298K is
Answer : Option B
Explaination / Solution:
Stability is proportional to CFSE value which is dependent upon Δo value. CN− is stronger field which increases the CFSE.
Q10. The effective medicine to be given to a person suffering from hyperacidity is
Answer : Option C
Explaination / Solution:
Cimetidine is effective in treating hyperacidity.
