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For breathing. Deep-sea divers use a mix...

For breathing. Deep-sea divers use a mixture of dioxygen and

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helium (He)
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Deep sea divers used to respire in a mixture of

Assertion : Deep sea divers use He-O_(2) mixture for breathing Reason : Unike N_(2) He is insoluble in blood ever under high pressure

Statement I : Deep sea divers use He-O_(2) mixture for breathing Statement II : Unlike N_(2) , He is not soluble in blood even under high pressure.

Assertion-Deep sea divers use Helium and oxygen mixture for breathing. Reason-helium is not solube in blood like nitrogen.

A neon-dioxygen mixture contains 70.6 g dioxygen and 167.5 g neon. If pressure of the mixture of gases in the cylinder is 25 bar. What is the partial pressure of dioxygen and neon in the mixture ?

Why do deep-sea divers wear special suits?

Helium-oxygen mixture is used by deep sea divers in the presence of nitrogen-oxygen mixture because

Assertion: A mixture of He and O_(2) is used for respiration for deep sea divers. Reason: He is soluble in blood.

the pressure of a 1 : 4 mixture of dihydrogen and dioxygen enclosed in a vessel is one atmosphere. What would be the partial pressure of dioxygen ?

PRADEEP-P-BLOCK ELEMENTS -FILL IN THE BLANKS
  1. Red phosphorus is..............reactive than white phosphorus as red p...

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  2. Conc. H(2)SO(4) chars paper, wood and sugar because it removes...........

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  3. Oleum is formed when .............is passed through conc. H(2)SO(4).

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  4. Like O(2), S(2) vapours are.............due to the presence of two unp...

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  5. The tailing of mercury by ozone is due to the fromationn of..............

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  6. ..............is formed when NH(3) is passed through a solution of cal...

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  7. When chlorine gas is passed through and aqueous solution of potassium ...

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  8. The increase in the solubility of iodine in an aqueous solution of pot...

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  9. Among N(2)O,SO(2),I(3)^(+) and I(3)^(-), the linear species are ………..a...

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  10. CN^(Theta),SCN^(Theta) and N(3)^(Theta) are called ………….

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  11. The halogen which normally does not form oxoacid is ……………..

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  12. The stronger reducing agent among all the halide ions is …………….

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  13. The first noble gas compound was prepared by reacting Xe with............

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  14. Amongst peracids of halogens, the strongest oxidising agent is...........

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  15. XeF(6) slowly undergoes hydrolysis by atmospheric moisture to give.......

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  16. XeF(4) is...........molecule in which Xe is.............hydbridized.

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  17. The noble gas which is radioactive is

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  18. For breathing. Deep-sea divers use a mixture of dioxygen and

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  19. The gas used in discharged tubes for advertisement is .

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  20. In electric bulbs...........inert gas is present with N(2) gas.

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