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Catalyst are chemical or biological substances that speeds up the rate of reaction without being used up in the overall process. It provides an alternative route for a reaction occur with a lower activati...

Benzene, aromatic and unsaturated compound which alternating double bonds. Benzene only reacts with bromine when a catalyst is present. Cyclohexene will react with bromine readily, a saturated molecule wi...

Consider NaCl and CCl4, the first compound is dominated by ionic bonding, whereas the second covalent.

Ionic bonding involves a cation (Na+) and an anion (Cl-), where strong electrostatic interacti...

NaBH4

Generally, molecules are coloured as they absorb visible frequencies of light, to promote an electron to a higher energy level, so the other (complementary) frequencies of light pass through the sample an...