Chemical Equilibrium MCQs

Option A: Very strong base

Option B: Very weak acid

Option C: Very strong acid

Option D: Very strong salt

Correct Answer: Very weak acid ✔

Option A: Gibbs

Option B: Einstein

Option C: Sorenson

Option D: Chadwick

Correct Answer: Sorenson ✔

Option A: reaction is at start

Option B: product conc. Is maximum

Option C: reactant conc. Is minimum

Option D: reaction is completed

Correct Answer: product conc. Is maximum ✔

Option A: Ka

Option B: Kb

Option C: Kp

Option D: K

Correct Answer: Kp ✔

Option A: high

Option B: low

Option C: according to Kc

Option D: constant

Correct Answer: high ✔

Option A: dynamic state

Option B: static state

Option C: free state

Option D: unidirectional state

Correct Answer: dynamic state ✔

Option A: 0.0002M HCI

Option B: 0.2 mole of NaCI with 0.2 mole of HNO3

Option C: 0.4 mole of CH3COOH with 0.4 mole of NaOH

Option D: 0.4 mole of NH3 with 0.2 mole of HCI

Correct Answer: 0.4 mole of NH3 with 0.2 mole of HCI ✔

Option A: KOH

Option B: NH3

Option C: PH3

Option D: BF3

Correct Answer: BF3 ✔

Option A: PCI5 = PCI3 + Cl2

Option B: N2 + 3H2 = 2NH

Option C: 2CO + O2 = CO2

Option D: N2 + O2 = 2NO

Correct Answer: N2 + O2 = 2NO ✔

Option A: 0

Option B: 1

Option C: 2

Option D: any one

Correct Answer: 2 ✔

Option A: No units

Option B: Units

Option C: Both A & B

Option D: None

Correct Answer: Both A & B ✔

Option A: weak

Option B: strong

Option C: moderately weak

Option D: unstable

Correct Answer: strong ✔

Option A: buffer solution

Option B: normal solution

Option C: standard solution

Option D: neutral solution

Correct Answer: buffer solution ✔

Option A: brine

Option B: blood

Option C: glue

Option D: solution of CuSO4

Correct Answer: blood ✔

Option A: reactants

Option B: acid

Option C: base

Option D: catalyst

Correct Answer: catalyst ✔

Option A: volume is decreased

Option B: volume increased

Option C: heat absorbed

Option D: no. of moles of specie decreased

Correct Answer: volume increased ✔

Option A: Ka

Option B: Kb

Option C: Kc

Option D: Ksp

Correct Answer: Ksp ✔

Option A: Standard solution

Option B: buffer solution

Option C: acidic buffer solution

Option D: both B & C

Correct Answer: both B & C ✔

Option A: common ion effect

Option B: solubility product

Option C: dissociation constant

Option D: dissociation constant for an acid

Correct Answer: solubility product ✔

Option A: Lowrys

Option B: Lewis

Option C: Arrhenius

Option D: None of these

Correct Answer: Lowrys ✔

Option A: pH

Option B: pOH

Option C: pKa

Option D: pKw

Correct Answer: pH ✔

Option A: more than 7

Option B: less than 7

Option C: equal to 7

Option D: no effect

Correct Answer: more than 7 ✔

Option A: V2O5

Option B: V2O5 and Pt

Option C: Fe

Option D: Pieces of Fe crystals are embedded in fused mixture of MgO Al2O3 and SiO2

Correct Answer: Fe ✔

Option A: Kc=x2/(a-x)(b-x)

Option B: Kc=x2/v(a-x)

Option C: Kc=4×2/(a-2x)2(b-x)

Option D: Kc=4x2v2/(a-x)(b-3x)3

Correct Answer: Kc=4x2v2/(a-x)(b-3x)3 ✔

Option A: moles2dm+6

Option B: moles-2dm+6

Option C: moles+2dm-6

Option D: Kc may or may not have units

Correct Answer: Kc may or may not have units ✔

Option A: rate of forward reaction

Option B: rate of backward reaction

Option C: rate constant

Option D: rate co-efficient

Correct Answer: rate of forward reaction ✔

Option A: reversible

Option B: irreversible

Option C: spontaneous

Option D: non-spontaneous

Correct Answer: reversible ✔

Option A: NaCI

Option B: Na2SO4

Option C: Na2CO3

Option D: FeCl3

Correct Answer: Na2CO3 ✔

Option A: Kc is generally greaer than Kp

Option B: Kc is generally less than Kp

Option C: Kc is generally equal to Kp

Option D: Kc is equal to Kp if the total moles of reactants and products are equal

Correct Answer: Kc is equal to Kp if the total moles of reactants and products are equal ✔

Option A: Increase of pressure

Option B: Increase of volume

Option C: Addition of catalyst

Option D: Decrease of temperature

Correct Answer: Addition of catalyst ✔

Option A: 3.6 x 10-6

Option B: 3.6 x 10-5

Option C: 7.2 x 10-6

Option D: 4 x 10-4

Correct Answer: 4 x 10-4 ✔

Option A: Strong acid and strong base

Option B: Weak acid and strong base

Option C: Weak acid and strong base

Option D: Weak acid and its salt with strong base

Correct Answer: Weak acid and its salt with strong base ✔

Option A: 3

Option B: 2.7

Option C: 2

Option D: 1.5

Correct Answer: 2.7 ✔