Chemistry-Objective Related Question Answers
651. Which salt is used as Flavouring agent?
Sodium chloride
652. Which salt is used as Food preservative?
Sodium benzoate
653. Which salt is used as Ingredient in baking powder?
Sodium bicarbonate
654. Which salt is used as gun powder?
Potassium nitrate
655. Nitrogen containing organic compounds are called?
Alkalloids
656. The taste of Alkalloids is?
Bitter
657. Measure of acidic or basic character of a liquid or solution is called?
pH value
658. pH scale was discovered by?
Soren Sorensen
659. pH value starts from?
0 to 14
660. pH value less than 7 is?
Acidic in nature
661. pH value equal to 7 is?
Neutral solutions (eq: water)
662. pH value more than 7 is?
Bases in nature
663. Solution which resists changes in pH caused by the addition of acid or alkali?
Buffer solution
664. Homogeneous mixture of two or more substances is called?
Solution·
665. Complex molecules formed by the combination of simpler molecules?
Polymer
666. The word polymer means?
Big molecule
667. Simplest unit of polymers?
Monomer
668. The process by which polymers and plastics made from monomers?
Polymerisation
669. Study of artificial fibre is called?
Polymer Chemistry
670. Examples of natural polymers are?
Cellulose; silk etc.
671. Paper is an example of?
Cellulose
672. Examples of artificial polymers are?
Rayon; Nylon; Teflon etc.
673. Father of Polymer Chemistry?
Hermann Staudinger
674. Father of Polymer Physics?
Hermann Mark
675. Plastics are generally?
Synthetic polymers
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