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You Are On Multi Choice Question Bank SET 2433
121651. Who proposed first atomic theory ?
(A): E.Rutherford (B): De Broglie (C): John Dalton (D): D.I.Mendeleef
121652. Natural rubber is a polymer derived from ?
(A): ethylene (B): propylene (C): isoprene (D): butadiene
121653. Washing soda is ?
(A): sodium sulphite (B): sodium bicarbonate (C): sodiun carbonate (D): sodium biosulphite
121654. Air contains maximum amount of
(A): oxygen (B): nitrogen (C): hydrogen (D): carbon dioxide
121655. Homo nuclear molecules contain ?
(A): polar bond (B): covalent bond (C): ionic bond (D): coordinate bond
121656. Human bone does not contain
(A): calcium (B): carbon (C): oxygen (D): phosphorous
121657. The isotope atoms differ in ?
(A): number of protons (B): atomic number (C): number of electrons (D): atomic weight
121658. What nucleus of atom contains ?
(A): protons (B): electrons (C): electrons and protons (D): protons and neutrons
121659. Nail polish remover contains ?
(A): benzene (B): acetic acid (C): acetone (D): petroleum ether
121660. What is a mixture of potassium nitrate powdered charcoal and sulphur called?
(A): paint (B): aluminium (C): brass (D): gun powder
121661. Which metal is heaviest ?
(A): osmium (B): mercury (C): iron (D): nickle
121662. Bleaching action of chlorine is by
(A): decomposition (B): hydrolysis (C): reduction (D): oxidation
121663. What is Calcium sulphate ?
(A): epsom salt (B): blue vitriol (C): gypsum salt (D): potash alum
121664. Which is used in preparation of dynamite ?
(A): glycerol (B): ethyl alcohol (C): methyl alcohol (D): glycol
121665. Oil of vitriol is
(A): nitric acid (B): sulphuric acid (C): hydrochloric acid (D): phosphoric acid
121666. What among following is used to produce artificial rain ?
(A): copper oxide (B): carbon monoxide (C): silver iodide (D): silver nitrate
121667. The term PVC used in the plastic industry stands for
(A): polyvinyl chloride (B): polyvinyl carbobate (C): phosphor vanadiu chloride (D): phosphavinyl chloride
121668. Rare gases are
(A): mono atomic (B): di atomic (C): tri atomic (D): None of above
121669. Identify the wrong statement in the following
(A): Atomic radius of the elements increases as one moves down the first group of the periodic table (B): Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the (C): Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius (D): Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius
121670. Which acid is present in lemon ?
(A): marlic acid (B): citric acid (C): lactic acid (D): tartaric acid
121671. Which is not a type of elements ?
(A): Metals (B): Non Metals (C): Metalloids (D): Gases
121672. Who is regarded as father of modern chemistry ?
(A): Ruterford (B): Einstein (C): Lavoisier (D): C.V. Raman
121673. If the mass number of an election is 16 and the atomic number is 8 then the number of nuetron is
(A): 16 (B): 8 (C): 32 (D): 4
121674. Green house gas is
(A): Carbon dioxide (B): Oxygen (C): Hydrogen (D): Nitrogen
121675. The ground state energy of the electron in the hydrogen atom is 13.6 eV the energy of the state n=2 is
(A): 13.6 eV (B): 6.8 eV (C): 4.5 eV (D): 3.4 eV
121676. Gain of electron is
(A): Combustion (B): Decomposition (C): Oxidation (D): Reduction
121677. What are the constituents of bronze?
(A): Copper and tin (B): Copper and zinc (C): Copper and iron (D): Zinc and iron
121678. Critically observe the reaction and choose the correct RQ from the options given below. Find the correct RQ of this reaction is
(A): 0.072 (B): 0.71 (C): 7.1 (D): 71
121679. Neoprene is a polymer of
(A): Chloroprene (B): Isoprene (C): Isobutane (D): Isopentane
121680. Natural rubber is a polymer of
(A): Propene (B): Isoprene (C): Formaldehyde (D): Phenol
121681. Which is used for moderator in the homogeneous nuclear reactor
(A): Heavy water (B): Rain water (C): Sea water (D): Well water
121682. An example of conducting polymer is
(A): Polycarbonate (B): Polyvinyl chloride (C): Polyacetylene (D): Polystyrene
121683. The carbide that produces methane on hydrolysis is
(A): MgC2 (B): BeC2 (C): Be2C (D): CaC2
121684. According to Bronsted-Lowry, an acid is
(A): A proton donor (B): A proton acceptor (C): An electron donor (D): An electron acceptor
121685. The International Year of Chemistry was/is
(A): 1999 (B): 2009 (C): 2010 (D): 2011
121686. Choose the correct order of increse inthe oxidation number of iodine in the following compounds I2,HI,HIO4 and ICI
(A): I2,HIO4 AND HIO4 (B): HI,HIO4,ICI,I2 (C): HI,I2,ICI,HIO4 (D): HIO4,ICI,I2,HI
121687. Identify the odd one from the group of chemicals given below : BHC, DDT, 2,4-D, Urea
(A): BHC (B): DDT (C): 2,4-D (D): Urea
121688. Which of the following is referred to as EMP pathway?
(A): Glycolysis (B): Electron transport chain (C): Pentose phosphate pathway
121689. The mixture present in the pencil lead is
(A): Carbon and Nitrogen (B): Carbon and Oxygen (C): Carbon and Clay (D): Carbon and Glass
121690. Which is the strongest acid
(A): HCOOH (B): CH3 COOH (C): C3H7COOH (D): C3H5COOH
121691. For a cell reaction : A(S) + 2B+ A2+ + 2B the equilibrium constant is found to be 10^12.ten the E° cell value is
(A): 0.354 V (B): 0.708 V (C): 0.0295 V (D): 0.177 V
121692. The specific conductance of 0.01 M solution of KCl is 1.4 X 10 -3 ohm-1 cm -1 at 298 K. Its equivalent conductance is (ohm-1 cm2 equt-1)
(A): 0.14 (B): 1.40 (C): 14.0 (D): 140
121693. The Compound is used as rocket propellant
(A): Hydrazine (B): Nitric acid (C): Ammonia (D): Nitrogen
121694. The enzyme discovered by CSIR to increases shelf life of fruits and vegetables is
(A): Kinase super oxidese (B): Ehtyl gluconase (C): Phenyl aldolase (D): Super oxide dismutase
121695. Photochemical smog is formed by
(A): O2,NO,H2O2 , organic peroxide etc (B): Consists of mercury and lead (C): Consists of NO2 and CO (D): Hydrocarbons
121696. Which of the following known as complete fertilizer
(A): Nitrogenous fertilizer (B): Potash fertilizer (C): NPK fertilizer (D): NP fertilizer
121697. _______ is called buckminster fullerence
(A): Diamond (B): Graphite (C): C60 (D): Coal
121698. Which of the following is halide ore
(A): Dolomite (B): Rock salt (C): Bauxite (D): Galena
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