Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 53

HARD

NEET

IMPORTANT

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What is not true for chromate and dichromate ion?

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Important Questions on d-Block and f-Block Elements

HARD

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 54

Pyrolusite is fused with

KOH

to form a compound

(A)

which in acidic solution forms

B

and

D

, where

B

is in higher oxidation state. What is not true regarding this?
a. The equivalent weight of pyrolusite is

M / 2

when it is converted to

' A'

.
b. The color of

B

is green and that of

D

is black.
c.

A, B,

and

D

are paramagnetic.
d. Bond order of

A

is greater than

B

.

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 55

{KMnO}_{4}

on heating decomposes to give

MEDIUM

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 56

Which of the following is false about stability of oxidation states of manganese?

MEDIUM

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 57

Which of the following species has oxygen in

- 1

oxidation state?

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 58

The explosive compound among the following is:

EASY

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 59

If

{KMnO}_{4}

is fused with hot

KOH

, then the product formed is:

HARD

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 60

A mixed oxide of iron and chromium,

{FeOCr}_{2} O_{3}

, is fused with

{Na}_{2} {CO}_{3}

in the presence of air, to form a yellow compound "

A

''. On acidification, the compound "

A

" forms an orange compound "

B

", which is a strong oxidizing agent.

A

and

B

respectively, are:

HARD

NEET

IMPORTANT

Chapterwise/Topicwise Daily Practice Problems (DPP) Inorganic Chemistry 2 NEET>Chapter 3 - d-Block and f-Block Elements>TOPICWISE QUESTIONS>Q 61

$(X) + K_{2} {CO}_{3} +$ Air $\overset{heat}{\to}$ $Y + {Cl}_{2} ⟶ Z$ (violet)

Which of the following is correct?