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Phosphine can be prepared by the reactio...

Phosphine can be prepared by the reaction of

A

`P_4` and `H_2SO_4`

B

`P_4 and NaOH`

C

`P_4 and HCIO_4`

D

`P_4 and HNO_3`

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AAKASH INSTITUTE ENGLISH-TEST 9-EXAMPLE
  1. Give an ore of Sn and Pb

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  2. Which of the following is a pair of peroxy compounds?

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  3. Phosphine can be prepared by the reaction of

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  4. Which of the following complexs is not correctly matched with hybridiz...

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  5. The weight of 1 atom of an element is 3.98 x 10^-23.what is its atom m...

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  6. Among the following,biogradable polymer is

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  7. The weight of 1 atom of an element is 2.98 x 10^-23.what is its atom m...

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  8. Benzamide on treatment with Br2 and alkali gives

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  9. Observe the following compounds (A) CH3CH2CHO (B) CH3COCH3 (C) Ph-C...

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  10. What is racemisation?

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  11. Which of the following reaction mixtures does not produce 1^circ alcoh...

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  12. Which of the following is an achiral compound?

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  13. Correct reactivity order of alkyl halides towards SN2 reaction is

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  14. pH of 0.2 M monobasic acid is 5. pKa value of monobasic acid is (log 5...

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  15. For a chemical reaction, observed thermodynamic parameters are given b...

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  16. 3 g of a gas (X) AT 77^circ C occupy the same volume as 0.1 g of Hydro...

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  17. Which one of the following statements is incorrect?

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  18. The rate of a first order reaction is 2.5 × 10^(-3 )mol L^(-1) min^(-...

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  19. What is Flux and its role in metallurgy?

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  20. 3F eletricity was passed through molten FeO. Weight of iron metal (Ato...

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