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Number of unhybridised orbitals in vinyl acetylene are (A) 2 (B) 3 (C) 4 (D) 6 ...
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A particle of charge q and mass m is moving in a circular orbit of radius r with angular speed ω. Another particle of charge 2q and mass 2m is moving in a circular orbit of radius 2r with the same angular speed ω. Let μ1 a ...
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Capacitor C is charged to a potential V and the battery is disconnected. now if the plates are brought close slowly by some distance: a) some +ve work is done by external agent b) energy of capacitor will decrease c) energy o ...
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Which of the following pairs of diseases is caused by virus? (a) rabies, mumps (b) cholera, tuberculosis (c) typhoid, tetanus (d) AIDS, syphilis ...
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A characteristic feature of cardiac muscle is its (a) fatigue (b) rhythmicity (c) spindle shape (d) all of the above ...
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For each characteristic given below, name the corresponding phylum: (a) body segmented and jointed legs, with compound eyes (b) body having calcareous shell and ventral foot (c) spiny skinned organisms ...
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Which Books Should i buy for organic chemistry.???? ...
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CH3OH → CH3COOH The above reaction proceeds in presence of.. (a) K2Cr2O7 (b)CH2N2 (c)CO2/BF3 (d) None ...
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the compound H3N:BF3 is isoelectronic with A)B2H6 B)C2H6 C)C5H12 D)C3H6 . PLEASE EXPLAIN. ...
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Phosphorous can form PH3 but no PH5 . why??? ...
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Phosphorous can form PH3 but no PH5 . why??? ...
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Phosphorous can form PH3 but no PH5 . why??? ...
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Half lihe is independent of the concentration of the reaction....After 10mins vol. of N2 gas is 10l and after complete reaction it is 50l ..hence rate const : a)(2.303/10)log 5 /min b)(2.303/10)log 1.25 c)(2.303/10)log 2 d)(2 ...
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Electronegativity of C & O in carbon-monoxide suggests it to be polar. But in reality it is not so. Why? ...
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Phosphorous can form PH3 but no PH5 . why??? ...
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What to do and what not to do in the last month before IIT-JEE http://www.youtube.com/watch?v=Z5-AfiJxjOc&context=C4acfebbADvjVQa1PpcFMQX-FKsRHXxJDA7RTt_k4sN1NL6Iapsuo= ...
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In a reaction NH4NO2 → N2(g) + 2H2O (l) the volume of N2 after 20 mins and after a long time is 40ml and 70ml respectively ...the value of rate const is: a)(1/20)ln(7/4) /min b)(2.303/1200)log(7/3) /sec c)(1/20)log(7/3) /mi ...
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In a reaction NH4NO2 → N2(g) + 2H2O (l) the volume of N2 after 20 mins and after a long time is 40ml and 70ml respectively ...the value of rate const is: a)(1/20)ln(7/4) /min b)(2.303/1200)log(7/3) /sec c)(1/20)log(7/3) /mi ...
