Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The first ionization enthalpy for oxygen is lower than that of nitrogen.
Reason R : The four electrons in 2p orbitals of oxygen experience more electron-electron repulsion.
In the light of the above statements, choose the correct answer from the options given below.
Match List I with List II.
List-I Ore |
List-II Composition |
||
---|---|---|---|
(A) | Siderite | (I) | FeCO$$_3$$ |
(B) | Malachite | (II) | CuCO$$_3$$ . Cu(OH)$$_2$$ |
(C) | Sphalerite | (III) | ZnS |
(D) | Calamine | (IV) | ZnCO$$_3$$ |
Choose the correct answer from the options given below :
Given below are two statements.
$$\bullet$$ Statement I : In CuSO4 . 5H2O, Cu-O bonds are present.
$$\bullet$$ Statement II : In CuSO4 . 5H2O, ligands coordinating with Cu(II) ion are O-and S-based ligands.
In the light of the above statements, choose the correct answer from the options given below.
Amongst baking soda, caustic soda and washing soda, carbonate anion is present in :