Coordination Compounds Class 12 Assertion and Reason Questions
Coordination Compounds Class 12 Assertion and Reason Questions has been provided by JEE Wallah to help students score good marks in their CBSE and Competitive exams. Assertion and Reason Questions on Class 12 Chemistry Chapter 9 COORDINATION COMPOUNDS is very important as these questions are asked in the Board Exam as well as JEE & NEET. Class 12 Chemistry Chapter 9 Coordination Compounds Assertion will help you check whether you have grasped the conceptual learning or not. This also include some previous year questions on coordination compounds class 12.
Coordination Compounds Class 12 Assertion and Reason Questions
Are you looking for a PDF file of Class 12 Coordination Compounds Assertion and Reasoning questions so that you can focus on your study to better perform in the upcoming CBSE Class 12 Board examination? If so, you are at the right place, our subject experts have prepared a set of Coordination Compounds Class 12 Assertion and Reason Questions in a PDF format which will boost up your preparation level.
Despite the fact that Coordination Compounds Class 12 Assertion Reason can be solved only by having proper conceptual knowledge, we are giving you some tips that can help you solve Assertion and Reasoning questions in Class 12 Coordination Compounds. The tips are : Read the Question Carefully; Analyze the Assertion statement; Analyze the Reason statement; Check if the Reason Statement of the Coordination Compounds Question Explains the Assertion Statement.
At last, our last tip is : Practice Coordination Compounds Class 12 Assertion and Reason Questions as much as possible.
1.
(A) - Aqueous solution of the compound CoCl3*4NH3 when treated with excess of one mole of AgCl is precipitated.
(R) - The compound CoCl3*4NH3 has six primary valencies and 1 secondary valency.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(c) A is true but R is false.
2.
(A) - The complex K3[Cr(C2O4)3] when present in aqueous solution will give taste of K+, Cr3+ and oxalate ions.
(R) - The complex K3[Cr(C2O4)3] will dissociate completely in solution.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(d) Both A and R are False.
3.
(A) - EDTA is an example of polydentate ligands.
(R) - Ligands which can coordinate with two different ions are polydentate ligands.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(c) A is true but R is false.
4.
(A) - Coordination number of Fe and Co in [Fe(C2O4)3]3- and [Co(en)3]3+ respectively is 6.
(R) - (C2O4)2- and en are bidentate ligands.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(a) Both A and R are true and R is the correct explanation of A
5.
(A) - [Co(NH3)5Br]SO4 gives white precipitate with barium chloride.
(R) - The Complex [Co(NH3)5Br]SO4 dissociates in the solution to give Br- and SO42-
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(c) A is true but R is false.
6.
(A) - Tetrahedral complexes having two different types of unidentate ligands coordinated with central metal ion will show geometrical isomerism.
(R) - Geometrical isomerism arises in homoleptic complexes due to different possible geometric arrangement of the ligands.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(d) Both A and R are False.
7.
(A) - In a coordination entity [PtCl2(en)2]2+ only the cis-isomer shows optical activity.
(R) - Optical isomerism is common in octahedral complexes involving bidentate ligands.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
8.
(A) - Inner orbitals complexes are low spin complexes.
(R) - In low spin complexes, inner d oribtal (3d) is used in the hybridisation.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(a) Both A and R are true and R is the correct explanation of A.
9.
(A) - [Fe(H2O)6]2+ is sp3d2 hybridised and paramagnetic complex ion.
(R) - [Fe(H2O)6]2+ has four unpaired electrons.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(a) Both A and R are true and R is the correct explanation of A.
10.
(A) - In Tetrahedral complexes low spin configurations are rarely observed.
(R) - Δt=(4/9)Δo
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(a) Both A and R are true and R is the correct explanation of A.
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11.
(A) - [Ti(H2O)6]Cl3 on heating becomes colourless.
(R) - Water is removed on heating [Ti(H2O)6]Cl3
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(a) Both A and R are true and R is the correct explanation of A.
12.
(A) - According to the Crystal Field theory, during complex formation the D orbitals split and form two sets of orbitals t2g and eg
(R) - Splitting of D orbitals occurs only in the case of a strong field ligands.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(c) A is true but R is false.
13.
(A) - [Fe(H2O)6]3+ is strongly paramagnetic whereas [Fe(CN)6]3- is weakly paramagnetic.
(R) - H2O is weak field ligand and CN is strong field ligand.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(a) Both A and R are true and R is the correct explanation of A.
14.
(A) - K2[Ni(EDTA)] is more stable than K3[Al(C2O4)3]
(R) - Ni is a transition element while Al is a non-transition element.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(b) Both A and R are true and R is not the correct explanation of A.
15.
(A) - NF3 is a weaker ligand than N(CH3)3
(R) - NF3 ionizes to give F- ions in aqueous solution.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) Both A and R are False.
Answer
(c) A is true but R is false.
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