MediumChemistry1
+4 / -1
Q.13 The dissociation constant of weak acid HA is 4.9×10–8. After making the necessary approximations . Calculate pH in 0.1 M acid –
A
1.155
B
2.155
C
3.155
D
4.155
Previous
Q.12 For the reaction N2 + 3H2 2NH3 , N2 & H2 were taken in the molar ratio of 1
NextQ.14 Boron cannot form which one of the following anions ?
More from Some Basics Concepts of Chemistry
Medium
Q.45 A blue solution of copper sulphate becomes darker when treated with excess of ammonia. This is
MediumQ.44 The order of stability of complexes of ion Cu+2, Ni+2, Mn+2 and Fe+2 decreases in the order -
MediumQ.43 Peptide bond group is characteristic of-
MediumQ.42 Which of the following is not a reducing sugar ?
MediumQ.41 Gabriel phthalimide reaction is used to prepare -
MediumQ.40 In hypobromite reaction of amide, carbonyl carbon atom is lost as -
Practice Chemistry1 Exams
Full-length mock tests with detailed analytics, rank, and percentile.
Browse Exams