Dihydrogen undergoes redox reactions with many metals at high temperature.
b) Comment whether the product formed is covalent compound or ionic compound.

Dihydrogen undergoes redox reactions with many metals at high temperature. c) Which is the reducing agent in this reaction?

Dihydrogen undergoes redox reactions with many metals at high temperature. a) Write the reaction between hydrogen with sodium

Why carbon forms covalent compounds whereas lead forms ionic compounds.

The element Cu with atomic number 29 undergoes chemcial reaction to formation with oxidation number +2: Write downthe chemical formula of one compound formed when this element re-acts with chlorine ("17CI) .

Which of the following compounds would undergo aldol condensation,in which the Cannizzaro reaction and which neither? Write the structures of thé expected products of aldol condensation and Cannizzaro reaction. i. Methanal ii. 2-Methylpentanal iii. Benzaldehyde iv. Benzophenone v.Cyclohexanone vii.1-Phenylpropanone vii, Phenylacetaldehyde viii. Butan-1-ol ix. 2,2-Dimethylbutanal

Explain giving reasons: i. Transition metals and many of their compounds show paramagnetic behaviour. ii. The enthalpies of atomisation of the transition metals are high. iii. The transition metals generally form coloured compounds. Iv. Transition metals and their many compounds act as good catalyst.