Which compound is formed when iron reacts with carbon?
(1)
(2)
(3)
(4)
Which of the following is correct?
(a) X= black, ,Y=Blue, , Z =
(b) X= green, , Y=Yellow ,, Z =
(c) X= black, , Y = green, , z =
(d) x = black, , Y = Colourless, , z =
Consider the following transformation:
Then can be:
(1)
(2)
(3)
(4)
Acidified permanganate solution does not oxidize:
(1)
(2)
(3)
(4)
Which of the following statements is incorrect?
1. | Transition elements exhibit higher enthalpies of atomization as they have stronger interatomic interaction. |
2. | |
3. | Ni(II) compounds are more stable than Pt(II) whereas Pt(IV) compounds are more stable than nickel(IV) |
4. | The elements which give the greatest number of oxidation states do not occur in or near the middle of the series. |
Which of the following is true for the species configuration ?
(1) is reducing in nature
(2) is oxidising in nature.
(3) Both (A) and (B)
(4) None of these
In which compound does vanadium have an oxidation number of +4?
(A)
(B)
(C)
(D)
Among the following, the species that is both paramagnetic and coloured is :
(A)
(B)
(C)
(D)
Arrange the following species in the increasing order of their magnetic properties.
I II III IV
(1) III<II<I<IV
(2) III<IV<II<I
(3) II<III<I<IV
(4) IV<I<II<III
Which of the following increasing order of oxidising power is correct for the following species?
(A)
(B)
(C)
(D)