Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 51

MEDIUM

12th CBSE

IMPORTANT

Earn 100

Match the properties with the elements of $3 d$ series:

(i) lowest enthalpy of atomisation (p) $Sc$

(ii) shows maximum number of oxidation states (q) $Mn$

(iii) transition metal that does not form coloured compounds (r) $Zn$

(s) $Ti$

54.55% studentsanswered this correctly

Important Questions on The d- and f-Block Elements

MEDIUM

12th CBSE

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 52

The trend of which property is represented by the following graph?

Question Image

MEDIUM

12th CBSE

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 53

Which of the following is not considered a transition element?

HARD

12th CBSE

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 55

Which of the following ions will have a magnetic moment value of

1.73 BM

.

{Sc}^{3 +}, {Ti}^{3 +}, {Ti}^{2 +}, {Cu}^{2 +}, {Zn}^{2 +}

HARD

12th CBSE

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 56

The second ionization enthalpies of chromium and manganese are

1592

and

1509 kJ / mol

respectively. Explain the lower value of

Mn

.

HARD

12th CBSE

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 57

Give two similarities in the properties of

Sc

and

Zn

.

MEDIUM

12th CBSE

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 58

What is actinoid contraction? What causes actinoid contraction?

MEDIUM

12th CBSE

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 59

What is the oxidation state of chromium in chromate ion and dichromate ion?

MEDIUM

12th CBSE

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - The d- and f-Block Elements>Sample Paper>Q 60

Write the ionic equation for reaction of

KI

with acidified

{KMnO}_{4}

.