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You Are On Multi Choice Question Bank SET 313
15651. The first organic compoundprepared in laboratory:
(A): Ammonia (B): Urea (C): Methane (D): Benzene
15652. The isotope used for thetreatment of Cancer:
(A): Carbon-14 (B): Uranium-238 (C): Cobalt-60 (D): None of these
15653. Kovar is an alloy of Iron and---------
(A): Lead (B): Copper (C): Tin (D): Cobalt
15654. Sir Humphry Davydiscovered:
(A): Helium (B): Hydrogen (C): Sodium (D): Oxygen
15655. A natural fertilizer:
(A): Urea (B): Ammonium Nitrate (C): Compost (D): Ammonium Nitrate
15656. Which metal is not used as electromagnet?
(A): Iron (B): Copper (C): Nickel (D): Cobalt
15657. Radium is chemicallysimilar to:
(A): Calcium (B): Hydrogen (C): Helium (D): Iron
15658. Which is used as eye wash?
(A): Hydrocyanic acid (B): Boricacid (C): Tannic acid (D): Citric acid
15659. Commercial Vaseline is derived from :
(A): Plant gums (B): Coaltar (C): Wool wax (D): Petroleum
15660. The process involving in making soap is:
(A): Saponification (B): Hydrolysis (C): Condensation (D): Polymerisation
15661. Neoprene, a synthetic rubber, is made from:
(A): Dichloroethane (B): 2-Chlorobutadiene (C): Carboxy- Methyl Cellulose (D): Methanol
15662. The second mostabundant gas in the atmosphere of the Earth:
(A): Oxygen (B): Argon (C): C02 (D): Hydrogen
15663. Kerosene was discovered in 1853 by:
(A): Humphrey Dewey (B): Faraday (C): Kekule (D): Abraham Gesner
15664. Thepoisonous gas emitted from the engines of two wheelers:
(A): Phosgene (B): Chlorine (C): Carbon Monoxide (D): Methyl Iso Cyanate
15665. The only substance in thatexists in nature in three forms solid, liquid and gas:
(A): Water (B): Coal (C): Dry ice (D): Urea
15666. Purest form of water
(A): River water (B): Sea water (C): Pond water (D): Rain water
15667. Element present in DNA andRNA:
(A): Sulphur (B): Iron (C): Calcium (D): Phosphorus
15668. The chemical that causesacid rain:
(A): Sulphur dioxide (B): Silver iodide (C): Silver bromide (D): Ozone
15669. Which is also known as ‘paraffin oil’?
(A): Petrol (B): Diesel (C): Kerozene (D): Naphta
15670. Gottileb Daimler invented
(A): Petrol engine (B): Diesel engine (C): Carburettor (D): Jet Engine
15671. The temperature at whichit will continue to bum for at least fiveseconds after ignition by an openflame is called:
(A): fire point (B): flashpoint (C): Autoignition point (D): Octane number
15672. The Basel Convention isrelated to:
(A): Hazardous Wastes (B): WarPrisoners (C): Nuclear Weapons (D): Drugs
15673. What is known as‘king of chemicals’?
(A): Hydrochloric acid (B): Sulphuric acid (C): Nitric acid (D): Aceticacid
15674. The acid present ineye lotion:
(A): Citric acid (B): Boricacid (C): Nitric acid (D): Carbolic acid
15675. Which vitamin isalso known as Ascorbic acid?
(A): Vitamin A (B): Vitamin C (C): Vitamin D (D): Vitamin E
15676. The gas used byplants to respire during day time:
(A): C02 (B): Methane (C): Nitrogen (D): Oxygen
15677. The gas used infactories to make Soda Water
(A): Carbon Dioxide (B): Ozone (C): Ammonia (D): Helium
15678. The second leastdense metal:
(A): Potassium (B): Sodium (C): Aluminium (D): Lithium
15679. The hardest metal:
(A): iron (B): Iridium (C): Chromium (D): Tungsten
15680. Metalthat is the best conductor of heat:
(A): Iron (B): Gold (C): Silver (D): Copper
15681. Ore ofchromium:
(A): Chromite (B): Nichrome (C): Wolfram (D): Sphalerite
15682. Magnesium silicate is:
(A): Soda ash (B): Quartz (C): Potash (D): Talc
15683. Which element has the highest electropositivity?
(A): Francium (B): Caesium (C): Flourin (D): Chlorine
15684. Cobalt ions give ......colour to glass:
(A): Green (B): Red (C): Blue (D): Purple
15685. Which is not a constituent of Sugar?
(A): Nitrogen (B): Carbon (C): Oxygen (D): Hydrogen
15686. Which metal plays a key role in the synthesis of proteins?
(A): Sodium (B): Magnisium (C): Calcium (D): Iron
15687. 243 Marsh Test determines the presence of:
(A): Sulphur (B): Arsenic (C): Carbon (D): Sodium
15688. Which of the following is a common constituent of Transistor?
(A): Beryllium (B): Iron (C): Copper (D): Germanium
15689. Frederic Wohler made urea from........
(A): Ammonium chloride (B): AmmoniumCarbonate (C): Ammonium Oxide (D): Ammonium cyanate
15690. The catalyst used for the manufacture of Ammonia:
(A): Silver (B): Sodium Chloride (C): Iron (D): Gold
15691. Which one of the following is the result of Green HouseEffect?
(A): Acid rain (B): Ozone depletion (C): Air pollution (D): Global warming
15692. Which element has the second highest capacity for oxidation?
(A): Iron (B): Oxygen (C): Mercury (D): Oxygen
15693. Dow process is used for the extraction of:
(A): Iron (B): Calcium (C): Sodium (D): Magnisium
15694. The second most ductile element:
(A): Copper (B): Iron (C): Tungsten (D): Silver
15695. Which metal is contained in Insulin?
(A): Zinc (B): Magnisium (C): Lithium (D): Barium
15696. Number of naturallyoccurring elements:
(A): 90 (B): 91 (C): 92 (D): 93
15697. Number of periods in the periodic table:
(A): 5 (B): 7 (C): 18 (D): 9
15698. Number of groups in the periodic table:
(A): 18 (B): 19 (C): 16 (D): 15
15699. Number of blocks in the periodic table:
(A): 4 (B): 5 (C): 6 (D): 7
15700. Alakaline earth metals belong to ......group.
(A): Fourth (B): Third (C): Second (D): First
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