Oxides of Group 16

Q.

Which of the following contains a coordinate covalent bond

1. N₂O₅

2. BaCl₂

3. HCl

4. H₂O

Q. 22.Balance the equation by oxidation number method MnO4- + SO2 ---> Mn2+ + HSO4-

Q. oxidation state of oxygen in HOF

Q. 41.When sulphur dioxide gas is passed through the solution of potassium iodate the oxidation state of iodine chnges from? (1)-+5 to 0 (2)+5 to -1 (3)-5 to 0 (4)-7 to -1

Q. Calculate the weight of oxygen produced from thermal decomposition of 5 gram of potassium chlorate

Q. Oxidation state of oxygen in ozone

Q. 40.What is the trend for +5 oxidation state as we go from nitrogen to bismuth?

Q. what is the difference between oxidation number and oxidation state

Q. oxidation state of oxygen in CrO5

Q.

In Na₂O oxidation state of oxygen is:

1. 0

2. -1

3. +2

4. +1

Q. When SO, is passed in acidified K, Cr, O, solution oxidation state of S changed from2(1) +4 to 0(2) +4 to +2(3) +4 to +6(4) +6 to +4

Q. A metallic oxide(MO) contains 40% oxygen. Is the 40% oxygen composition by mass or by volume or by number of atoms?

Q. Purest form of hydrogen peroxide exist in which state - solid, liquid, gas or semisolid. Explain

Q.

Between hydrogen fluoride and water:

1. HF has weaker hydrogen bonds

2. HF has the lower boiling point

3. Water has the lower boiling point

4. None of the above

Q.

Which of the following is NOT true about the oxidation state of oxygen?

1. It shows oxidation state +2.

2. It shows oxidation state +3.

3. It shows oxidation states -1.

4. It shows oxidation state -1/2.

Q. oxidation state of oxygen in CrO5

Q. 15.The oxidation state usually shown by nitrogen and phosphorus are: A.+3only B.+5only C.both +3 and +5 D.-3

Q.

Q.

what is the difference in oxidation states of sulphur in H2S4O6

Q. H2S4O6 oxidation state of all suphur And Br3O8

Q. A metallic oxide(MO) contains 40% oxygen. Is the 40% oxygen composition by mass or by volume or by number of atoms?

Q. 53. How to find the oxidation state of an compound ??

Q. H2S4O6 oxidation state of all suphur And Br3O8