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Idenitfy A, B and C...


Idenitfy A, B and C

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A, B, D
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In A B C , ray A D bisects /_A and intersects B C in D . If B C=a , A C=b and A B=c , prove that B D=(a c)/(b+c) (ii) D C = (a b)/(b+c)

Prove the identities: |[a, b, c],[ a-b,b-c,c-a],[ b+c,c+a, a+b]|=a^3+b^3+c^3-3a b c

If in a triangle A B C angle B=90^0 then tan^2(A/2) is (b-c)/a (b) (b-c)/(b+c) (c) (b+c)/(b-c) (d) (b+c)/a

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ALLEN-ALKENE, ALKANE & ALKYNE -EXCERSISE-2
  1. Which of the following reactions involve a decrease in the length of t...

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  2. A mixture of calcium acetate and calcium formate on heating gives

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  3. Consider the following sequence of reactions. underset(H^(+))overse...

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  4. Consider the folloing reaction. underset(2.H(3)O^(+))overset(1. B(2...

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  5. Which of the following methods are used for the conversion of carboxyl...

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  6. Which of the following statements are correct for benzoic acid?

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  7. All but one of the following compounds reacts with aniline to give ace...

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  8. What is the final product (B) of this sequence :

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  9. What is compound Z : CH(3)CH(2)CH(2)Broverset(NaCN)rarrXoverset(H(2...

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  11. Which one of the following orders of acetic strength is correct ?

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  12. The relative order of rate of esterification of acids for 1^0,2^0,3^0 ...

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  13. The treatment of CH(3)CH(2)COOH with chlorine in the presence of pho...

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  14. Which of the following sequences of rate of alkaline hydrolysis of est...

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  15. Which of the following is used to perform following transformation:

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  16. Which of the following does not give iodoform:

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  17. One can distinguish between HCOOH and CH3 COOH with :

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  18. Name the reagent can be used following transformation?

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  19. Idenitfy A, B and C

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  20. Which of the following on reduction with LiAlH(4) will give ethyl al...

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