Heavy Water

Q. Which of the following options is correct regarding heavy water?

1. The freezing point of heavy water is $0^{\circ }\text{C}$.
2. The boiling point of heavy water is ${50}^{\circ }\text{C}$.
3. Its molecule contains 2 atoms of oxygen.
4. Its chemical formula is ${\text{D}}_2\text{O}$.

Q.

The chemical formula of heavy water is:

1. ${\text{D}}_2\text{O}$

2. ${\text{H}}_2\text{O}$

3. ${\text{H}}_2{\text{O}}_2$

4. ${\text{T}}_2{\text{O}}_2$

Q.

Which of the following are the isotopes of hydrogen?

1. Deuterium

2. Tritium

3. Heavy water

4. Hydrates

Q. Chemical formula of heavy water is ${\text{H}}_2\text{O}$.

1. True
2. False

Q. Choose the correct option regarding the following assertion and reason.

Assertion: Heavy water is about 10% heavier than normal water.
Reason: Deuterium does not have any neutron.

1. Assertion is correct but reason is wrong
2. Assertion is wrong but the reason is correct
3. Both assertion and reason are correct and the reason is the correct explanation for the assertion
4. Both assertion and reason are correct but reason is not the correct explanation for the assertion

Q.

Heavy water is made up of _______isotope of hydrogen.

Q.

Match the following:

$$\begin{array}{cccc}1& Molecularformulaofwater& A& 18amu\\ 2& Chemicalnameofwater& B& Oceans\\ 3& Molecularmassofwater& C& H_{2}O\\ 4& Largewaterbodies& D& Dihydrogenmonoxide\end{array}$$

1. 1-D, 2-A, 3-B, 4-C

2. 1-D, 2-B, 3-A, 4-C

3. 1-C, 2-D, 3-A, 4-B

4. 1-C, 2-B, 3-A, 4-D

Q.

In the electrolysis method of $D_2$O, electrolyte used is

1. Dil.NaOH

2. Pure water

3. Conc. NaOH solution

4. 50% H2SO4

Q.

The chemical formula of cupric nitrate is_______

Q.

Which among the given options is used for the preparation of the isotope deuterium?

1. Heavy water

2. Ammonia

3. Water

4. Methanol

Q.

In the electrolysis method of $D_2$O, electrolyte used is

1. 50% H2SO4

2. Dil.NaOH

3. Pure water

4. Conc. NaOH solution