Detergents used for cleaning clothes and utensils contain
Detergents used for cleaning clothes and utensils contain (1) nitrates (2) bicarbonates (3) s…
Detergents used for cleaning clothes and utensils contain (1) nitrates (2) bicarbonates (3) s…
Which of the following metals form an amalgam with other metals? (1) Lead (2) Tin (3) Zinc (…
Which is the purest form of iron? (1) Steel (2) Cast iron (3) Pig iron (4) Wrought iron Answ…
Which variety of coal contains recognizable traces of the original plant material? (1) Anthraci…
Which of the following is the petroleum wax? (1) Beeswax (2) Carnauba wax (3) Paraffin wax (…
Cloud is a colloidal dispersion of (1) Air in a dispersion medium of water (2) Fog in a disper…
Aspirin is (1) Methoxy benzoic acid (2) Methyl Salicylate (3) Acetyl Salicylic acid (4) Phen…
Which of the following is the main nitrogenous waste in humans? (1) Ammonia (2) Urea (3) Uric…
Which of the following chemical materials is responsible for the depletion of the ozone layer in…
The polymerization of which of the following is used in the manufacturing of polythene in the in…
Milk tastes sour when it is left in the open for some time. This happens due to the formation of…
Which of the following alloy is used in making magnets? (1) Duralumin (2) Stainless steel (3)…
Which of the following is used as filler in the tire of rubber? (1) Carbon black (2) Coal (3)…
Which of the following fibers catches fire least? (1) Nylon (2) Cotton (3) Rayon (4) Terraco…
Which of the following imparts a deep blue color to glass? (1) Cobalt oxide (2) Cupric oxide …
The pH of human blood is between : (1) 6.5-7 (2) 7.5-8 (3) 8-9 (4) 4.5-5 Answer: (2) Bloo…
The metallic constituents of hard water are : (1) Magnesium, Calcium, and tin (2) Iron, tin an…
Which of the following vegetable oils does not contain essential fatty acids? (1) Sunflower oil…
Which amidst the following is not a gemstone? (1) Cat’s-eye (2) Topaz (3) Opal (4) Pearl An…
PVC is obtained by the polymerization of (1) Propane (2) Vinyl chloride (3) Styrene (4) Acet…