Recent questions tagged past papers

Fraternal twin one baby is haemophilic while baby's brother is normal then which statement is true :

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Fully digested food reaches to liver by :

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Maximum DDT in birds feeding on :

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Deficiency of oxygen affects most the :

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What shall be the water potential of a root hair cell absorbing water from the soil :

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Which pair is of insectivorous plants :

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Homologous organs are :

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Insulin differs from Growth hormone in :

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Nitrogen fixing bacteria converts :

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During injury mast cells secrete :

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According to forestery commission report 1997 the total forest cover of India :

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Which of the following is secondary pollutant

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Exponential growth is shown by :

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Species diversity is maximum in :

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What is phytotron :

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Function of Nucleases :

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Endosperm in Gymnosperm is :

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Biotic and abiotic components form :

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Lichens can be used as :

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Which of the following statement is true for bryophyta -

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HIV infects :

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What change occurs by changing one base in DNA :

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Percentage energy transferred to higher tropic level in food chain is :

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Concentration of DDT is highest in :

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Bhopal gas tragedy is related with :

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Ornithophilly takes place in :

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Koch's postulates not applicable to :

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Practical purpose of taxonomy or classification :

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Best method to preserve the wild relatives of plants :

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Main reason of disturbance of biological diversity :

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Best economic method to harvest the solar energy :

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Most stable pesticides :

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Total amount of $CO_2$ fixed annually by plants :

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Number of base pairs in human chromosomes :

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Half life of a substance is 77 days then its decay constant will be :

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Which of the following reaction given by isocyanide :

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The bombarment of $\alpha$-particle on $_{7}N^{14}$, emits proton then new atom will be :

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Clemenson's reaction is :

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Which of the following is true for a reaction in which all the reactant & product are liquids :

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A system is expanded under adiabatic process :

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Increasing order of bond length is :

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What is true for a cyclic process :

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What will be the $H^+$ con when 4 gm NaOH dissolved in 1000 ml. of water :

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Determine the value of $E^0$ cell for the following reaction : <br> $Cu^{+2}+Sn^{+2}\to Cu+Sn^{+4}$ <br> Equilibrium constant is $10^6$ <br> $Cu^{++}+Sn^{++}\to Cu+Sn^{+4}$

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Sucrose on hydrolysis gives :

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Cr in $[Cr(NH_3)_6]$ has number of unpaired electron :

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$[Cu(NH_3)_4]^{+2}$ reacts with HNO3 in excess of water gives :

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A compound contain C, H and O. If C = 40% and H = 6.67% then empirical formula of compound will be :

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Which of the following compound contain zero oxidation state of Fe :

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Monomer of natural rubber is :

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