Chemistry - Complete d-block Question with Solution | TestHub
A metal 'M' does not combine with reagent A & B individually but when combines with an appropriate mixture of reagents A & B produces a gas . This gas can also be produced by reaction of other metal of same family and dil solution of reagent A . On the basis of above information which of following statements is/are true ?
(I) These metals may belongs to transition metals.
(II) Gas is paramagnetic & blue coloured gas.
(III) Metals of same family which are lighter than M produces same gas on reaction with reagent B.
Options:
Answer:
Solution:
Metal reacts with a mixture of reagents A and B to produce gas , but not with A or B separately.
This represents the formation of gas by metals with a mixture of oxidizing and non-oxidizing acids (e.g., with conc. + ).
is colorless and paramagnetic, not blue colored; hence, statement (II) is incorrect.
These metals may belong to transition metals (d-block), so statement (I) is correct. Statement (III) is not always true.
