CUET-PG SERIES Environmental-studies
Chemical Properties Of Metals
2 previous year questions.
Volume: 2 Ques
Yield: Medium
High-Yield Trend
2
2023 Chapter Questions 2 MCQs
01
PYQ 2023
medium
environmental-studies ID: cuet-pg-
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Type B metal ions form more stable complexes compared to Type A metal ions.
Reasons (R): High electro-negativity (in relative terms) of metal and low electro-negativity of the legand donor atom would be consistent with stability of a complex with Type B metal ion.
In the light of the above Statements, choose the most appropriate answer from the options given below:
Assertion (A): Type B metal ions form more stable complexes compared to Type A metal ions.
Reasons (R): High electro-negativity (in relative terms) of metal and low electro-negativity of the legand donor atom would be consistent with stability of a complex with Type B metal ion.
In the light of the above Statements, choose the most appropriate answer from the options given below:
1
Both (A) and (R) are correct and (R) is the correct explanation of (A)
2
Both (A) and (R) are correct but (R) is NOT the correct explanation of (A)
3
(A) is correct but (R) is not correct
4
(A) is not correct but (R) is correct
02
PYQ 2023
medium
environmental-studies ID: cuet-pg-
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Stability of most complexes with the alkaline earth metals is in the order Mg2+ > Ca2+ > Sr2+> Ba2+
Reason R :For type A ions, Electrostatic model approximately explain the stability of metal-ligand complexes that is, stability of these complexes is positively correlated with the ratio of Z2/r for both metal ion and the ligand species.
In the light of the above statements, choose the most appropriate answer from the options given below:
Assertion A: Stability of most complexes with the alkaline earth metals is in the order Mg2+ > Ca2+ > Sr2+> Ba2+
Reason R :For type A ions, Electrostatic model approximately explain the stability of metal-ligand complexes that is, stability of these complexes is positively correlated with the ratio of Z2/r for both metal ion and the ligand species.
In the light of the above statements, choose the most appropriate answer from the options given below:
1
Both A and R are correct and R is the correct explanation of A
2
Both A and R are correct but R is not the correct explanation of A
3
A is correct but R is not correct
4
A is not correct but R is correct