Which is used for artificial ripening of fruit ?

Related Mcqs:

1. Which gas is used for artificial ripening of green fruit ?

   A. Carbon dioxide
   B. Acetylene
   C. Ethane
   D. Ethylene

   Submitted by: Malik Asghar Hussain

2. Which is artificial manmade fiber?

   A. Boron
   B. Saffron
   C. Rayon
   D. None of these

   Submitted by: Bilal Tahir

3. Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?

   A. aluminium can be recycled
   B. aluminium has very low density
   C. aluminium is the most abundant metal in the earth crust
   D. aluminium is resistant to corrosion by organic acids.

4. Alkanes containing a methyl group on main chain at 2nd carbon are called________________?

   A. iso-alkane
   B. normal-alkane
   C. neo-alkane
   D. branched-alkane

5. Alkanes are also known as________________?

   A. saturated hydrocarbon
   B. unsaturated hydrocarbon
   C. paraffins
   D. both A & C

6. Introduction of nitro group in a molecule is called___________________?

   A. nitration
   B. halogenation
   C. sulphonation
   D. amination

7. Preparation of vegetable ghee involves_________________?

   A. halogenation
   B. hydroxylation
   C. hydrogenation
   D. hydration

8. Dehalogenation of ethyl tetrahalide will give____________________?

   A. ethene
   B. ethyne
   C. ethyl halide
   D. all of the above are possible

9. Upto ___________________ C atoms alkanes are gases?

   A. 2
   B. 3
   C. 4
   D. 6

10. Raney nickel is prepared from ______________________ by treating with caustic soda?

    A. Ni-Cu alloy
    B. Ni-Fe alloy
    C. Ni-Al alloy
    D. Ni-Mg alloy