Which of the following statements is NOT correct?

A.	Hydrogen is used to reduce heavy metal oxides to metals.
B.	Heavy water is used to study the reaction mechanism.
C.	Hydrogen is used to make saturated fats from oils.
D.	The H-H bond dissociation enthalpy is lowest as compared to a single bond between two atoms of any element.
E.	Hydrogen reduces oxides of metals that are more active than iron.

Choose the most appropriate answer from the options given below: 

1.	A, B, C only	2.	B, C, D, E only
3.	B, D only	4.	D, E only

Match list-I with list-II:

Choose the correct answer from the options given below:

Match List - I with List - II.

Tritium, a radioactive isotope of hydrogen, emits which of the following particles?

1. Gamma $\left(\gamma \right)$

2. Neutron (n)

3. Beta $\left({\beta }^{-}\right)$

4. Alpha $\left(\alpha \right)$

Pure water can be obtained from sea water by:

1.  Centrifugation
2.  Plasmolysis
3.  Reverse osmosis
4.  Sedimentation

 $H_2{O}_{\mathrm{2<mspace\; width="1em"></mspace>}}$on oxidation gives:

1. $O^{-2}$

2. $O{H}^{-}$

3. $O_2^{-}$

4. $O_2$

The pair that on reaction will not evolve $H_2$ gas is  

1.  Copper and HCl (aqueous)
2.  Iron and steam
3.  Iron and $H_{2}S{O}_4$ (aqueous)
4.  Sodium and ethyl alcohol

Some statements about water are given below:
 

Which of the above statements are correct?

1. (a), (b), and (c)

2. (b) and (c)

3. (a) and (c)

4. (a) and (b)