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k for reversible reaction is 3.2 if velocity constant of the forward reaction is a,12x10-3 velocity constant of br is ans is,2.86 x 10-4 how,,plz xplain ...
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1, 1, 2, 2 - tetrabromoethane on treatment with Zn dust yields an 1. alkene 2. alkane 3. alkyne 4. haloalkane ...
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Which pair of species have same percentage of carbon ? HCOOCH3 and C12H22O11 CH3COOH and C6H12O6 CH3COOH and C2H5OH C6H 12O6 and C12H22O11 how ...
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Which among the following substances is not ferrimagnetic? Mg Cr Zn . Fe what is ferrimagnetic..... ...
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A reaction A + B C + D. Initially, we start with equal concentration of A and B, At equilibrium we find the moles of C is two times of A. What is the equilibrium constant of the reaction? 1/4 2 4 1/2 xplain clearly ...
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Which of the following is not a synthetic fibre ? 1. Rubber 2. Nylon-6 3. Nylon-6, 6 4. Nylon-6, 10 ...
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which of the following is not an intensive property vapour pressure internal energy specific heat refractive index give reason..............is ans vapour pressure? ...
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powerful explosive RDX is formed during the nitration of ureotorpine glycol toulene phenol energy of activation of reaction depends on nature of the reactant temperature pressure concentration xplain plz,,,,,,,,,,, ...
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1) haemoglobin is 1)an organometallic compound 2)chelate 3)conjugate gloubular protien 4)all above these 2)proteins contains 1)exclusively D isomers of amino acid 2)mostly L isomers of amino acid 3)50% of each D- and L- amino ...
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How many kinds of primitive unit cells are possible Select Answer: 23 7 230 14 how..........wat are primitive unit cells ...
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Which hydrides are non stoichiometric Select Answer: Covalent hydrides Metallic hydride Saline hydride Alkali metal hydride why plz xplain ...
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the vapour pressure of water decreases by 10% when a solte is dissolved in it .the approximate molarity of the solution is 5.5 10 2 2.5 ...
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How many chiral carbon atoms are present in 2, 3, 4-trichloropentane ? 4 1 . 2 3 how to decide ?any technique ...
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A current of electricity is passed through a copper voltameter and a water voltameter connected in series if the copper anode of the copper voltameter now weighs 16 mg less ,hydrogen liberated at the cathode of the water volt ...
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An aqueous solution containing 100grams of dissolved MgSO4 is fed to a crystallizer where 80% of the Dissolved salt crystallises out as MgSO4. 6H2O Crystals. How many grams of the hexahydrate salt Crystals are obtained from t ...
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Assuming complete ionisation, the pH of 0.1M HCL is 1. The molarity of H2SO4 with the same Ph is: a) 0.1 b) 0.2 c) 0.05 d) 2.0 Acetone and acetaldehyde are: a) functional isomer b) position-isomers c) chain isomers d) not iso ...
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Bromine can be liberated from KBr solution by the action of : KI NaCl Cl2 I2 solution An ester used as medicine is : ethyl acetate methyl salicylate ethyl benzoate methyl benzoate ...
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The frequencies of two tuning forks are 480 cps and 480.05 cps respectively. When sounded together, after how much interval the maximum sound will become half if the minimum intensity is zero ? 5 s 10 s 20 s 0.025 s ...
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NaSO4 n Na2SO4 are alloys isomers isomorphous system polymorphous system ...
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The reaction 2N2O5 <--> 4NO2 + O2 follows Ioder kinetics. Hence the molecularity of reaction is unimoleqular. pseudo unimoleqular bimoleqular. none of these. Given that Zn + ½ O2 --> ZnO + 35.28 kj HgO --> Hg +  ...
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5g of alumunium treated with excess of dilute HCl ,the volume of hydrogen evolved at STP in dm3 Ans is 6.22......can u tell me how euql masses of zinc n bromine were allowed to react till completion of reaction to form ZnBr2 ...
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wat is oxidation number of iron in Fe(CO)5? xplain how to calculate ...
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which is most basic among the following? MgO Na2O CaO Al2O3 how u will decide,,,,,,,,,,,,xplain me...... the maximum number of hydrogen bondsthat can be formed by a molecule of water----------- ...
