Material Science and Technology Set 1

Cupric oxide ✘ Nickel oxide ✘ Cobalt oxide ✘ Iron oxide ✔

Collagen ✘ Carbohydrate ✘ Polymer ✘ Nucleic acid ✔

Salts of silicates ✘ Mixture of glycerol and alcohols ✘ Sodium or potassium salts of heavier fatty acids ✘ Esters of heavy fatty acids ✔

Graphite ✘ Synthetic petroleum ✘ Fertilizers ✘ Carbide ✔

Cellulose ✘ Pectin ✘ Glucose ✘ Amylase ✔

Dicarboxylic acids ✘ Monocarboxylic acids ✘ Glycerol ✘ Tricarboxylic acids ✔

Powder type ✘ Liquid type ✘ Soda acid type ✘ Foam type ✔

Natural rubber ✘ Starch ✘ Cellulose ✘ None of these ✔

By decreasing density of Soap ✘ By decreasing solubility of Soap ✘ By increasing density of Soap ✘ By increasing solubility of Soap ✔

Quartz and mica ✘ Sand and silicates ✘ Salt and quartz ✘ Sand and salt ✔