Start Chemistry MCQs Quiz Test !
Chemistry State Of Matter MCQs With Answers
Q.1: A substance which increases the reactivity of enzyme is called———?
Q.2: When the reaction completes in more than one steps rate of reaction will be determined by——–?
- Fast step
- Slowest step
- All steps
- Molecularity of the reaction
Q.3: Energy of activation for backward reaction is less than forward reaction for —— reactio?
Q.4: Sodium benzoate and benzoic acid are mixed in equimolar ration to form buffer if pKa is 2 what will be the pH ?
- any one
Q.5: In which of the following equilibria will Kc and Kp have the same value ?
- PCI5 = PCI3 + Cl2
- N2 + 3H2 = 2NH
- 2CO + O2 = CO2
- N2 + O2 = 2NO
Q.6: Which of following is not a base——-?
Q.7: Which set of solutes will form a buffer when dissolved in water to make 1 litter of solution ?
- 0.0002M HCI
- 0.2 mole of NaCI with 0.2 mole of HNO3
- 0.4 mole of CH3COOH with 0.4 mole of NaOH
- 0.4 mole of NH3 with 0.2 mole of HCI
Q.8: Chemical equilibrium state is——–?
- dynamic state
- static state
- free state
- unidirectional state
Q.9: At start of reaction the concentration of reactants is——–?
- according to Kc
Q.10: In case of gases Kc is replaced by——–?