# The PH of a 10-8M HCl solution is approximately

1.  8

2.  6.96

3.  7

4.  14

4

6.96

Explanation :
No Explanation available for this question

# The molar concentrations of A,B and C at equilibrium for the reaction A+2B⇔3C are 2,3 and 4 moles/lit respectively. Its Kc is

1.  2

2.  3.56

3.  0.2

4.  0.026

4

3.56

Explanation :
No Explanation available for this question

# 9.2 grams of N2O4(g) is taken one liter vessel and heated till the following equilibrium is reached N2O4 (g)⇔2NO2(g).At equilibrium 50% of N2O4(g)

1.  0.2

2.  0.1

3.  0.4

4.  2

4

0.2

Explanation :
No Explanation available for this question

# A sample of water contains 11.1 ppm of CaCl2 and 9.5 ppm of MGCl2 the hardness of water sample is

1.  20

2.  20.6

3.  206

4.  200

4

20

Explanation :
No Explanation available for this question

# Calculate the pH buffer solution prepared by mixing 50ml of 0.1M sodium acetate and 25ml of 0.2M CH3COOH if pKa of CH3COOH is 4.8

1.  4.8

2.  10.2

3.  5.8

4.  14

4

4.8

Explanation :
No Explanation available for this question

# In which of the following reactions, the concentration of reactant is equal to concentration of product at equilibrium(K=equilibrium constant)

1.  A⇔b;K=0.01

2.  R⇔P;K=1

3.  X⇔Y;K=10

4.  L⇔J;K=0.025

4

R⇔P;K=1

Explanation :
No Explanation available for this question

# Law of mass action cannot be applied to

1.  2HI(g)⇔H2(g)+I2(g)

2.  PCl5(g)⇔PCl3(g)+Cl2(g)

3.  Water(l)⇔Ice(s)

4.  CaCO3(s)⇔CaO(s)+CO2(s)

4

Water(l)⇔Ice(s)

Explanation :
No Explanation available for this question

# 1 mole of PCl5 is heated with 0.2 mole of chlorine in a one litre vessel till equilibrium is established. At equilibrium if 0.8 mole of chlorine in the vessel, the value of equilibrium constant for the dissociation of

1.  0.9

2.  1.8

3.  1.2

4.  0.5

4

1.2

Explanation :
No Explanation available for this question

# PH of a solution produced when aqueous solution of PH 6 is mixed with an equal volume of an aqueous solution oh PH is about

1.  4.3

2.  3.3

3.  4

4.  4.8

4

3.3

Explanation :
No Explanation available for this question

# For the reaction 3O2(g)⇔2O3(g) reaction between Kp and Kc

1.  Kp>Kc

2.  Kp

3.  Kp=Kc

4.  Cannot be predicted

4