CBSE 12TH CHEMISTRY - Online Test
Q1. Which of the following represents chelating ligand?
Answer : Option C
Explaination / Solution:
Q2. The narcotic analgesic administered in medicinal doses is
Answer : Option C
Explaination / Solution:
Morphine is the narcotic analgesic admininstered in medical doses.
Q3. Galvanic or a voltaic cell converts the chemical energy liberated during a redox reaction to
Answer : Option D
Explaination / Solution:
Galvanic cells convert chemical energy to electrical energy.
Q4. Give IUPAC names of the following compound:
Answer : Option C
Explaination / Solution:
Chloro is given priority so umbered as 1
Q5. The following molecule is called as
Answer : Option B
Explaination / Solution:
It is aldohexose. An aldohexose is a hexose with an aldehyde group on one end.it is naturally occurring in nature and is found in fruits.
Q6. Which among the following is an instantaneous reaction?
Answer : Option D
Explaination / Solution:
Precipitation of AgCl is an example of instantaneous reaction.
Q7. Catalyst used in hydrogenation of vegetable oil is
Answer : Option A
Explaination / Solution:
Vegetable oil is unsaturated fats which are hydrogenated used Ni as catalyst.
Q8. The following amine is called as
Answer : Option D
Explaination / Solution:
The above compound is aniline and benzeneamine.
Q9. Isopropyl alcohol on oxidation forms:
Answer : Option B
Explaination / Solution:
Secondary alcohols are oxidized to ketones. The oxidation of isopropyl alcohol by potassium dichromate (K2Cr2O7) gives acetone, the simplest ketone: Unlike aldehydes, ketones are relatively resistant to further oxidation, so no special precautions are required to isolate them as they form.
Q10. Molality of a solution relates the
Answer : Option B
Explaination / Solution:
Molality is number of moles of solute dissolved in per Kg of solvent.
