IIT-JEE 2001 Screening | Some Basic Concepts of Chemistry Question 25 | Chemistry

IIT-JEE 2001 Screening

MCQ (Single Correct Answer)

-0.5

In the standardization of Na₂S₂O₃ using K₂Cr₂O₇ by iodometry, the equivalent weight of K₂Cr₂O₇ is:

(molecular weight)/2

(molecular weight)/6

(molecular weight)/3

Same as molecular weight

IIT-JEE 2000 Screening

MCQ (Single Correct Answer)

-0.5

Amongst the following identify the species with an atom in +6 oxidation state

$$MnO_4^ - $$

$$Cr(CN)_6^{3 - }$$

$$NiF_6^{2 - }$$

$$Cr{O_2}C{l_2}$$

IIT-JEE 1999

MCQ (Single Correct Answer)

-0.5

The normality of 0.3 M phosphorus acid (H₃PO₃) is

0.1

0.9

0.3

0.6

IIT-JEE 1999

MCQ (Single Correct Answer)

-0.5

The oxidation number of sulphur in S₈,S₂F₂,H₂S respectively, are

0, +1 and -2

+2, +1 and -2

0, +1 and +2

-2, +1 and -2

JEE Advanced Subjects