Q. Glass is
1) a compound
2) a supercooled liquid
3) a mixture of polysilicates
4) both b and c
Q. Gases have
1) a definite shape but not volume
2) a definite volume and shape
3) a definite volume but not shape
4) neither definite volume nor shape
Q. F-block are also called
1) alkali metals
2) inner transition elements
3) transition elements
4) trans uranic elements
Q. Faraday's Law is associated with
1) Electrolysis
2) Reaction of gases
3) Pressure of gases
4) Temperature and pressure
Q. Enzymes are
1) Carbohydrates
2) proteins
3) fatty acids
4) nucleic acids
Q. Enthalpy of a compound is equal to
1) heat of combustion
2) heat of formation
3) heat of reaction
4) heat of sublimation
Q. Enamel is
1) a hardened transparent coating of paint
2) a glossy coating fused to the surface of a metal, glass or pottery
3) a kind of clay mixed with pigments
4) none of above
Q. Elements that show the properties of both metals and non metals are called
1) allotropes
2) metalloids
3) alloys
4) colloids
Q. During dehydration, the substance that the body usually loses is
1) sugar
2) sodium chloride
3) calcium phosphate
4) potassium chloride
Q. Distillation at reduced pressure is used for liquids which have
1) high boiling points
2) low boiling points
3) high volatility
4) decomposed before their boiling points
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