Chemistry-Objective Related Question Answers
951. What is the name for the greenblue coating that forms naturally on copper; bronze and brass?
Verdigris
952. What is P.V.C.?
Poly Vinyl Chloride
953. What is the chemical name for saltpetre?
Potassium Nitrate
954. Coffee stains on clothing; paper; plastic etc can be properly removed by?
Sodium hypochlorite
955. Which substance is used for dry cleaning?
Trichloro ethane
956. What is the chemical name for Galena?
Lead sulphite
957. Which chemical is used for preserving fruit juice in India?
Sodium Benzoate
958. Most abundant alkali metal is?
Sodium (Na)
959. The whitest compound in the earth’s atmosphere is?
Titanium dioxide
960. The compound known as “Nitre” is?
Potassium nitrate
961. Which compound is known as “Pearl Ash”?
Potassium carbonate (K2CO2)
962. The chemical name of washing soda is?
Sodium carbonate
963. The densest known gas?
Radon
964. The acid used as a mild antiseptic eye lotion?
Boric Acid
965. What is hydroxy propionic acid called?
Lactic Acid
966. Soda water contains which acid?
Carbonic Acid
967. What is called vinegar?
3-7% solution of acetic acid
968. Which gas is used for killing bacteria?
Chlorine
969. Proteins are assembled from which acid?
Amino acid
970. Oranges contains which acid?
Citric acid
971. What is the another name for monocarboxylic acid?
Fatty acid
972. Where is formic acid found?
Ants and nettles
973. Which gas is filled in electric bulbs?
Argon
974. Which gas is commonly used in balloons and airships?
Helium
975. Which acid is contained in Tomato sauce?
Acetic acid
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