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The compounds A and B above are repectiv...


The compounds A and B above are repectivley

A

B

C

D

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2021 -CHEMISTRY (CATEGORY -I)
  1. The exact order of acidity of the compounds p-nitrophenol, acetic acid...

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  2. The dipeptides which may be obtained from the amino acids glycine and ...

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  3. The compounds A and B above are repectivley

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  4. For a spontaneous reaction at all temperatures which of the following ...

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  5. A given amount of Fe^(2+) is oxidized by x mol of MnO4^(-) in acidic ...

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  6. An element crystallizes in a body centred cubic lattice. The edge leng...

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  7. Molecular velocities of two gases at the same temperature (T) are u1 a...

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  8. When 20 g of naphthoic acid (C11H8O2) is dissolved in 50 g of benzene ...

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  9. The equilibrium constant for the reaction N2(g) + O2(g) hArr 2NO(g) is...

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  10. Under the same reaction conditions , initial concentration of 1.386 mo...

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  11. Which one of the following solutions will have highest conductivity ?

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  12. Indicate the products (X) and (Y) in the following reactions : Na2S ...

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  13. 2.5 ml 0.4 (M) weak monoacidic base (kb=1 xx 10^(-12) at 25^@ C ) is t...

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  14. Solubility products (K(sp)) of the salts of types MX, MX2 and M3X at t...

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  15. The reduction potential of hydrogen half-cell with be negative if

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  16. A saturated solution of BaSO(4) at 25^(@)C is 4xx10^(-5)M. The solubi...

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  17. A solution is made by a concentrated solution of Co(NO(3))(2), with a ...

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  18. Extraction of a metal (M) from its sulfide ore (M(2)S) involves the fo...

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  19. The white precipitate (Y), obtained on passing colourless and odourles...

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  20. Which structure has delocalised pi-electrons ?

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