Find Out the correct pair. - Vidyadip

MCQ

Find Out the correct pair.

A
$Ti ^{2+}, CO ^{2+}$
B
$Cr ^{2+}, Mn ^{3+}$
C
$Fe ^{2+}$ and $CO ^{3+}$
✓
$CO ^{3+}$ and $Cu ^{2+}$

✓

Answer

Correct option: D.

$CO ^{3+}$ and $Cu ^{2+}$

$CO ^{3+}$ and $Cu ^{2+}$
Both have positive electrode potential whereas others have different value.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer." from Transition and Inner Transition Elements→Transition and Inner Transition Elements — all question types→Chemistry STD 12 question papers→Tamilnadu Board STD 12 question papers→Tamilnadu Board question paper generator→

Similar questions

Solids ice, glucose are examples of ………..

Sodium formate solution on electrolysis gives at anode.

Assertion(A): Glucose is called blood sugar.
Reason (R): Human blood contains about 100 mg/di of glucose hence it is called blood sugar.

The sum of primary valence and secondary valence of the metal M in the complex $\left[ M ( en )_2( Ox )\right] Cl$ is ____________.

Which one of the following is formed when benzene diazonium chloride is boiled with water?

The increasing order of acid strength is ………….

Cell equation: $A +2 B ^{-} \longrightarrow A ^{2+}+2 B $
$A ^{2+}+2 e ^{-} \longrightarrow A$ $E^0= +0.34$ V and $log_{10}$ k = 15.6 at 300 K for cell reactions find $E^0$ for $B ^{+}+ e ^{-} \longrightarrow B$

Which one of the following is an example tar an autocalalysis?

Which alcohols is used in making printing inks and stamp pad ink?

Consider the following statement
(i) DNA mainly present in cytoplasm, nucleolus and ribosomes.
(ii) RNA is stable and not hydrolysed easily by alkalis.
(iii) DNA can replicate itself.
Which of the above statement is / are correct?