Chemical equilibrium state is_______________?
A. dynamic state B. static state C. free state D. unidirectional state
Chemistry MCQs
At start of reaction the concentration of reactants is_______________?
A. high B. low C. according to Kc D. constant
In case of gases Kc is replaced by_______________?
A. Ka B. Kb C. Kp D. K
When the value of Kc is very small then_______________________?
A. reaction is at start B. product conc. Is maximum C. reactant conc. Is minimum D. reaction is completed
Idea of pH and pOH was put forward by________________?
A. Gibbs B. Einstein C. Sorenson D. Chadwick
Ka
A. Very strong base B. Very weak acid C. Very strong acid D. Very strong salt
Which of the following is a macro nutrient ?
A. boron B. iron C. copper D. carbon
Three elements needed for the healthy growth of plants are_________________?
A. N P K B. N K C C. N S P D. N Ca P
Residence time of methane in the atmosphere is___________________?
A. 3 – 7 days B. 2 -3 days C. 3 – 7 years D. 2 – 3 years
Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing___________________?
A. NH2Cl B. NHCI2 C. NCI2 D. all of the above