Solution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?
A. buffer solution
B. normal solution
C. standard solution
D. neutral solution
Submitted by :- Jamil Ahmed
Which one of the following is a buffer solution ?
A. brine
B. blood
C. glue
D. solution of CuSO4
Submitted by :- Jamil Ahmed
Equilibrium state is achieved quickly by the addition of ________________?
A. reactants
B. acid
C. base
D. catalyst
Submitted by :- Jamil Ahmed
By decreasing the pressure the reaction will go to that direction where_________________?
A. volume is decreased
B. volume increased
C. heat absorbed
D. no. of moles of specie decreased
Submitted by :- Jamil Ahmed
Solubility of any salt can be determined from_______________?
A. Ka
B. Kb
C. Kc
D. Ksp
Submitted by :- Jamil Ahmed
Residence time of methane in the atmosphere is___________________?
A. 3 – 7 days
B. 2 -3 days
C. 3 – 7 years
D. 2 – 3 years
Submitted by :- Jamil Ahmed
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
Submitted by :- Jamil Ahmed
Which of the following is a macro nutrient ?
A. boron
B. iron
C. copper
D. carbon
Submitted by :- Jamil Ahmed
Ka<1-3 means______________?
A. Very strong base
B. Very weak acid
C. Very strong acid
D. Very strong salt
Submitted by :- Jamil Ahmed
Idea of pH and pOH was put forward by________________?
A. Gibbs
B. Einstein
C. Sorenson
D. Chadwick
Submitted by :- Jamil Ahmed