Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 4

MEDIUM

AS and A Level

IMPORTANT

Earn 100

Deduce the overall polarity of the trans-isomer of ${[Ni {(CN)}_{2} {Cl}_{2}]}^{+}$ .

Important Questions on Transition Elements

EASY

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 5

Blue cobalt chloride paper gets its blue colour from

{[{CoCl}_{4}]}^{2 -}

ions. Give the oxidation number of the cobalt in this complex.

EASY

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 5

Blue cobalt chloride paper is used to test for water. If water is present, the paper turns pink as a complex forms between the cobalt ion and six water ligands. Write an equation to show the ligand substitution reaction that takes place in a positive test for water.

EASY

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 5

Which of the following equations correctly describes the reaction of hydrated copper

(II)

ions with concentrated hydrochloric acid? Also Identify the oxidation number of the central metal atom formed in the reaction.

MEDIUM

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 6

Write the expression for stability constant for the given reaction:

${[{PtCl}_{4}]}^{2 -} + 2 {NH}_{3} ⇌ {PtCl}_{2} {({NH}_{3})}_{2} + 2 {Cl}^{-}$

EASY

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 6

Write the expression for stability constant for the given reaction:

{[Cr {(H_{2} O)}_{6}]}^{3 +} (aq) + 2 {Cl}^{-} (aq) ⇌ {[Cr {(H_{2} O)}_{4} {Cl}_{2}]}^{+} (aq) + 2 H_{2} O (l)

MEDIUM

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 6

Write the expression for stability constant for the given reaction:

${[Ni {(H_{2} O)}_{6}]}^{2 +} (aq) + 4 {NH}_{3} (aq) ⇌ {[Ni {({NH}_{3})}_{4} {(H_{2} O)}_{4}]}^{2 +} (aq) + 4 H_{2} O (l)$

EASY

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 7

What do degenerate atomic orbitals mean?

EASY

AS and A Level

IMPORTANT

Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 24 - Transition Elements>Question>Q 7

Explain why an octahedral complex of a transition element is coloured.