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If the flame of a gas stove burns with y...

If the flame of a gas stove burns with yellow tips,the burner must be adjusted to provide

A

More air

B

More gas

C

Less air

D

None of the above

Text Solution

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The correct Answer is:
A
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER - 7-CHEMISTRY
  1. Which match is incorrect

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  2. The atom larger in size as compared to oxygen is

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  3. When KBr is treated with conc. H2SO4 a reddish brown gas is evolved. T...

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  4. Which of the following liberates oxygen to from water

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  5. Structur of ammonia is

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  6. If the flame of a gas stove burns with yellow tips,the burner must be ...

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  7. Which sulphate has the highest solubility in water

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  8. Alkali metal chloride soluble in pyridine is

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  9. The salt which is least likely to be found in minerals is

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  10. The element with the highest first ionization potential is

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  11. A nitrogen containing compound on heating with CHCl3 and alcoholic KOH...

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  12. Aniline on treatment with HCl and NaNO2 at low temperature gives

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  13. Nitrobenzene on reduction with Zn//NH4 Cl gives

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  14. A hydrocarbon reacts with hypochlorous acid to give 1-chlor-2-hydroxy ...

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  15. Alkene R - CH = CH2 reacts readily with B2H6 and the product on oxidat...

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  16. Action of water on calcium carbide gives

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  17. Acidic hydrogen is present in

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  18. RCH2C Cl2R overset(X)to R - C-=C - R The reagent 'X' is

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  19. When acetylene is passed through dil.H2SO4 in presence of HgSO4,the co...

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  20. Which of the following compounds will react with metal by displacing t...

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