Two students performed the same experiment separately, and each of them recorded two readings of mass, which are given below. The correct reading of mass is 3.0 g. On the basis of the given data, mark the correct option out of the following statements.

A reading on Fahrenheit scale is $200°\mathrm{F}$. The same reading on celsius scale will be :

The molarity of a solution containing 5.85 g of NaCl(s) per 500 mL of solution is -

1. 4 mol L^-1

2. 20 mol L^-1

3. 0.2 mol L^-1

4. 2 mol L^-1

If 500 mL of a 5 M solution is diluted to 1500 mL, the molarity of the resultant solution is: 

1. 1.5 M

2. 1.66 M

3. 0.017 M

4. 1.59 M

Mark the species among the following that contains the highest number of atoms.

1. 4 g He

2. 46 g Na

3. 0.40 g Ca

4. 12 g He

If the concentration of glucose  (C₆H₁₂O₆)  in the blood is 0.9 g L^-1, then the molarity of glucose in the blood is 
1. 5 M
2. 50 M
3. 0.005 M
4. 0.05 M

The molality of a solution containing 18.25 g of HCl gas in 500 g of water is -

The number of molecules of H₂SO₄ present in 100 mL of 0.02 M H₂SO₄ solution is: 

1. $12.044\times {10}^{20}$ molecules

2. $6.022\times {10}^{23}$ molecules

3. $1\times {10}^{23}$ molecules

4. $12.044\times {10}^{23}$ molecules

The mass percent of carbon in carbon dioxide is: 

The empirical formula and molecular mass of a compound are ${\mathrm{CH}}_2\mathrm{O}$ and 180 g, respectively. The molecular formula of the compound is -