PRINCIPLES RELATED TO PRACTICAL CHEMISTRY – 1

1) In Millon’s test for proteins the reagent is a) CuSO4 b) K2HgI4 c) K4[Fe(CN)6] d) HgSO4 2) Lassaignes test is not used in qualitative analysis to detect a) Nitrogen b) Sulphur c) Chlorine d) Phosphorus 3) In Carius tube, the compound was heated with fuming and . After filtration and washing, a white ppt. … Read more PRINCIPLES RELATED TO PRACTICAL CHEMISTRY – 1

S – BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS) – 7

1) The solubility of the alkaline earth metal hydroxides increases from Be(OH)2 to Ba(OH)2 because a) Hydration energy > Lattice energy b) Lattice energy > Hydration energy c) Hydration energy is equal to lattice energy d) None is correct 2) MgBr2 and MgI2 are soluble in acetone because of a) Their ionic nature b) Their … Read more S – BLOCK ELEMENTS (ALKALI AND ALKALINE EARTH METALS) – 7

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