Advertisements
Advertisements
प्रश्न
What is the oxidation state of chromium in chromate ion and dichromate ion?
Advertisements
उत्तर
In both chromate and dichromate ion the oxidation state of Cr is +6.
APPEARS IN
संबंधित प्रश्न
In what way is the electronic configuration of the transition elements different from that of the non-transition elements?
Comment on the statement that elements of the first transition series possess many properties different from those of heavier transition elements.
When acidified \[\ce{K2Cr2O7}\] solution is added to \[\ce{Sn^{2+}}\] salts then \[\ce{Sn^{2+}}\] changes to ______.
Highest oxidation state of manganese in fluoride is \[\ce{+4 (MnF4)}\] but highest oxidation state in oxides is \[\ce{+7 (Mn2O7)}\] because ______.
Which of the following will not act as oxidising agents?
(i) \[\ce{CrO3}\]
(ii) \[\ce{MoO3}\]
(iii) \[\ce{WO3}\]
(iv) \[\ce{CrO^{2-}4}\]
Transition elements show high melting points. Why?
Ionisation enthalpies of Ce, Pr and Nd are higher than Th, Pa and U. Why?
Which of the following species has maximum magnetic momentum?
The trend of which property is represented by the following graph?

The second ionization enthalpies of chromium and manganese are 1592 and 1509 kJ/mol respectively. Explain the lower value of Mn.
