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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2021 -CHEMISTRY (CATEGORY -I)
- Cyclo [18] carbon is an allotrope of carbon with molecular formula C18...
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- p - nitro - N, N - dimetylaniline cannot be represented by the resonat...
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- The relationship between the pair of compounds shown above are respect...
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- The exact order of acidity of the compounds p-nitrophenol, acetic acid...
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- The dipeptides which may be obtained from the amino acids glycine and ...
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- The compounds A and B above are repectivley
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- For a spontaneous reaction at all temperatures which of the following ...
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- A given amount of Fe^(2+) is oxidized by x mol of MnO4^(-) in acidic ...
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- An element crystallizes in a body centred cubic lattice. The edge leng...
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- Molecular velocities of two gases at the same temperature (T) are u1 a...
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- When 20 g of naphthoic acid (C11H8O2) is dissolved in 50 g of benzene ...
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- The equilibrium constant for the reaction N2(g) + O2(g) hArr 2NO(g) is...
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- Under the same reaction conditions , initial concentration of 1.386 mo...
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- Which one of the following solutions will have highest conductivity ?
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- Indicate the products (X) and (Y) in the following reactions : Na2S ...
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- 2.5 ml 0.4 (M) weak monoacidic base (kb=1 xx 10^(-12) at 25^@ C ) is t...
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- Solubility products (K(sp)) of the salts of types MX, MX2 and M3X at t...
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- The reduction potential of hydrogen half-cell with be negative if
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- A saturated solution of BaSO(4) at 25^(@)C is 4xx10^(-5)M. The solubi...
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- A solution is made by a concentrated solution of Co(NO(3))(2), with a ...
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