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