Select the coloured compound amongst the following .

(At. no. Ti= 22, Cr= 24, Cu= 29, Zn= 30)

• TiCl₄

• CrCl₃

• ZnCl₃

• CuCl

Which among the following solids crystallises as a face centred cube?

• Iron

• Rubidium

• Uranium

• Platinum

Which oxyacid of sulphur contains S-S single bond?

• Oleum

• Marshall's acid

• Dithionic acid

• Thiosulphuric acid

Select the diamagnetic complex ion amongst the following complexes (At. no. : Fe = 26,CO = 27)

• K₃[Fe(CN)₆]

• [Co(NH₃)₆)Cl₃

• K₃[FeF₆]

• K₃[CoF₆]

Write IUPAC name of following compound

• 2-amino-4-hydroxybenzoic acid

• 6-amino-4-hydroxybenzoic acid

• 3-amino-4-carboxyphenol

• 2-carboxy-4-hydroxyaniline

36.

Select the ether among following that yields methanol as one the products on reaction with cold hydroiodic acid

• 1-methoxybutane

• 1-methoxybutane-2-methylpropane

• 2-methoxy-2-methylpropane

• methoxybenzene

The two monomers used in the preparation of dextron are

• 3-hydroxy butanoic acid and 3-hydroxy pentanoic acid

• ∈ amino caproic acid and glycine

• isobutylene and isoprene

• lactic acid and glycolic acid

Deficiency of which vitamin causes degeneration of spinal cord?

• E

• K

• B₁₂

• A

One mole of stachyose on hydrolysis yields

• 1 mole of glucose+ 1 mole of fructose+ 2 mole of galactose

• 2 mole of glucose + 1 mole of fructose + 1 mole of galactose

• 1 mole of glucose+ 2 mole of fructose+ 1 mole of galactose

• 2 mole of glucose+ 2 mole of fructose

Alkaline hydrolysis of which among the following compounds leads to the formation of a racemate?

• 1-bromo-1-phenylethane

• 1-chloro-3-methylbutane

• Bromoethane

• 1-chloropropane