Question

1. A measured temperature on Fahrenheit scale is 200°F. What will this reading be on Celsius

scale?

a) 40°C

b) 94°C

c) 93.3 °C

d) 30 °C

2. What will be the molarity of a solution, which contains 5.85 g of NaCl(s) per 500

a) 4 mol L

b) 20 mol L

c) 0.2 mol L"

3. If 500 ml of 5M solution is diluted to 1500 mL, what will be the mola of the solution d) 1.59 M obtained?

a) 1.5 M

b) 1.66 M

4. The number of atoms present in one mole of an element is equal to Avogadro number. Which of the following element contains the greatest number of atoms? BHATI ACADEMY

a) 4g He b) 46g Na

d) 12g He

5. If the concentration of glucose (C:H1z0s) in blood is 0.9 g L", what will be the molarity of

glucose in blood?

a) 5 M

c) 0.005 M

d) 0.5 M

6. What will be the molality of the solution containing 18.25 g of HCI gas in 500 g of water?

a) 0.1 m

b) 1 M

c) 0.5 m

d) 1 m

7. One mole of any substance contains 6.022 x 10 atoms/molecules. Number of molecules of H2SO4 present in 100 mL of 0.02M H2SO4 solution is a) 12.044 x 10 molecules

b) 6.022 x 10 molecules

d) 12.044 x 10 molecules

c) 1 x 10 molecules

8. What is the mass percent of carbon in carbon dioxide?

a) 0.034%

b) 27.27%

c) 3,4%



9. The empirical formula and molecular mass of a compound are CH20 and 180 g respectively.

What will be the molecular formula of the compound?

a) C&H 20

b) CH20

c) C6H120.

d) C2H4O2

10. If the density of a solution is 3.12 g mL, the mass of 1.5 mL solution in significant figures d) 46.80g

a) 4.7g
b) 4680 x 10-3g c) 4.680g​

Answer 1

Explanation:

500" (and any subsequent words) was ignored because we limit queries to 32 words.