Which of the following unit of concentration is independent of temperature ?

Related Mcqs:

1. 10ml of alcohol dissolve in 90ml of water unit of concentration used is________________?

   A. % w/w
   B. % w/v
   C. % v/v
   D. % v/w

2. Solution with maximum concentration of solute at given temperature is called________________?

   A. Super saturated solution
   B. unsaturated solution
   C. saturated solution
   D. dilute solution

3. Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called________________?

   A. saturated solution
   B. solubility
   C. unsaturated solution
   D. super saturated solution

4. For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?

   A. N2+3H2 2NH3
   B. H2+I2 2HI
   C. 2NO2 N2H4
   D. PCI5 PCI3+CI2

5. If a graph is plotted between temperature on x-axis and volume on y-axis for 1 mole of gas then we get straight line which cuts the temperature exis at________________?

   A. 0?C
   B. 273.16K
   C. ?273.16 K
   D. ?273.16?C

6. Which of the following will not change the concentration of ammonia at the equilibrium ?

   A. Increase of pressure
   B. Increase of volume
   C. Addition of catalyst
   D. Decrease of temperature

7. 58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be___________________?

   A. 0.1 M
   B. 1 m
   C. 1 M
   D. 0.1 N

8. A solution has pH = 0 its H+ ion concentration is__________________?

   A. 1 x 10-1
   B. 1 x 10-14
   C. 1 x 10-7
   D. 1

9. In pig iron the concentration of C-atom is ___________________?

   A. 0.12 — 0.25%
   B. 2.5 — 4.5%
   C. 2.0 — 4.0%
   D. 0.25 — 2.5%

10. Sum of exponents of molar concentration is called___________________?

    A. Order of reaction
    B. Molecularity
    C. Rate of reaction
    D. Average of reaction