Recent questions tagged past papers

In ferns, Meiosis takes place at the time of :

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Plant group with largest ovule, largest tree, and largest gametes :

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Aquatic fern is used to increase the yield in paddy crop :

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Simillarity in DNA and RNA :

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Which cell organelle is concerned with glycosylation of protein :

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The movement of ions against the concentration gradient will be :

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During viral infection the protein formed in host cells to resist is :

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Which factor is responsible for inhibition of enzymatic process during feed back :

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Which food should be eaten in deficiency of Rhodopsin in eyes :

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Characteristic of simple epithelium is :

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Which gland secretes odourous secretion in mammals :

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Which pair is correct :

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Which statement is true for WBC :

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Depolarization of axolema during nerve conduction takes place because of :

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What is the work of progesteron which is present in oral contraceptive pills :

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What is the work of copper T :

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Reason, why hair loss is more in old age :

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In which point pulmonary artery is different from pulmonary vein :

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Concentration of urine depends upon which organ :

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Pneumatophores are found in :

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Hair are found in the inflorescences of Zea mays are the modification of :

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Which of the following character is not found in all the chordates :

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What is true for mammalia :

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Which is showing accurate pairing :

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Due to the cross between TTRr × ttrr the resultant progenies showed how many percent plants tall, red flowered :

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According to mendelism which character is showing dominance :

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Which is the first $CO_2$ Acceptor enzyme in $C_4$ plants :

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For assimilation of one $CO_2$ molecule; the energy required in form of ATP & $NADPH_2$

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The bacteria generally used for genetic engineering is :

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Plants take zinc in form of :

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For the synthesis of one glucose molecule the calvin cycle operates for :

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When the plants are grown in magnesium deficient but urea rich soil; the symptoms expressed are :

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The first step for initiation of photosynthesis will be :

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At 27ºC latent heat of fusion of a compound is 2930 J/mol. Entropy change is :

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$2Zn+O_2\rightarrow 2ZnO$ $\bigtriangleup Gº $= – 616 J $2Zn+S_2\rightarrow 2ZnS$ $\bigtriangleup Gº$ = – 293 J $S_2+2O_2 \rightarrow 2SO_2$ $\bigtriangleup Gº$ = – 408 J $\bigtriangleup Gº$ for the following reaction is :$2ZnS+3O_2 \rightarrow 2ZnO+ 2SO_2$

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At infinite dilution equivalent conductances of $Ba^{+2}$ & $Cl^-$ ions are 127 & $76ohm^{-1}$ $cm^{-1}$ $eq^{-1}$ respectively. Equivalent conductance of $BaCl_2$ at infinite dilutions is :

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Cell reaction is spontaneous when :

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For the disproportionation of copper :$2Cu^+\rightarrow Cu^{+2}+Cu$, Eº is : - (Given Eº for $\frac{Cu^{+2}}{Cu}$ is 0.34 V & Eº for $\frac{Cu^{+2}}{Cu^+ }$is 0.15 V :

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Which species does not exhibits paramagnetism :

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Which complex compound will give four isomers :

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Which compound has planar structure :

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Which of the following statement is correct for the stability of ions of ethyl alcohol and phenol :

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Which of the following element exhibit maximum oxidation state :

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Conjugate acid of $NH{_2^-}$ :

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In quantitative analysis of second group in lab. $H_2S$ gas is passed in acidic medium for ppt. When $Cu^{+2}$ and $Cd^{+2}$ react with KCN, than in which of the following condition, ppt will not be formed due to relative stability :

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A cube of any crystal A-atom placed at every corners and B-atom placed at every centre of face. The formula of compound :

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For a any reversible reaction. If increases concentration of reactants. Then effect on equilibrium constant :

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Correct relation b/w dissociation constant's of a di-basic acid :

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In Friedal craft reaction Toluene can be prepared by :

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Equilibrium constant Kp for following reaction : $MgCO_3(s)\rightleftharpoons MgO(s)+CO_2(g)$

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