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Which of the following can acts as a red...

Which of the following can acts as a reducing agent ?

A

`K_(2)Cr_(2)O_(7)`

B

`CaOCl_(2)`

C

`PbO_(2)`

D

`H_(2)S`

Text Solution

Verified by Experts

The correct Answer is:
D
`H_(2)S`
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NARAYNA-SOME BASIC CONCEPTS IN CHEMISTRY STOICHIOMETRY (PART-I)-All Questions
  1. Which of the following are neutral oxide?

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  2. The oxidation state of N in HNO(4) is

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  3. Which of the following can acts as a reducing agent ?

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  4. Which of the following is displacement reaction :

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  5. N kg^(-1) is the unit of :

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  6. Prefix zepto and femto stands for which multiples ?

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  7. The number of significant figures in N(0) = 6.022 xx 10^(23) (Avogadro...

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  8. The correctly reported answer of the addition of 4.523, 2.3 and 6.24 w...

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  9. The answer of the calculation (2.568 xx 5.8)/(4.168) in significant fi...

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  10. How many significant figures are present in the following ? (i) 0.00...

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  11. 314.000 has how many significant figures.

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  12. The correctly reported difference of 16.4215 and 6.01 will have signif...

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  13. After rounding off 1.235 and 1.225, we will have their answer respecti...

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  14. In the formation of SO(2) and SO(3) the ratio of the weights of oxygen...

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  15. 14gm of element X combine with 16gm of oxygen. On the basis of this in...

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  16. Law of multiple proportions is illustrated by one of the following pai...

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  17. A sample of pure carbon dioxide, irrespective of its source contains 2...

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  18. Boron has two istopes B^(10) & B^(11) whose relative abundances are 20...

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  19. Which of the following has highest mass

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  20. 1.5 moles of oxygen atoms are present in

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