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Name two salts that are used in black an...

Name two salts that are used in black and white photography.

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Both silver chloride and silver bromide are used in black and white photography.
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A metal salt MX when exposed to light splits up to form metal M and a gas X_(2) . Metal M is used in making ornaments whereas gas X_(2) is used in making bleaching powder. The salt MX is itself used in black and white photography. (a) What do you think metal M is ? (b) What could be gas X_(2) ? (c) Name the metal salt MX. (d) Name any two salt solutions which on mixing together can produce a precipitate of salt MX. (e) What type of chemical reaction takes place when salt MX is exposed to light ? Write the equation of the reaction.

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DINESH PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS -Very Short Answer Questions
  1. Give an example of a double displacement reaction (only) reaction with...

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  2. In the reaction MnO(2) + 4HCl to MnCl(2) + 2H(2)O + Cl(2), identify wh...

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  3. Name two salts that are used in black and white photography.

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  4. State the chemical change that takes place when lime stone is heated

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  5. Write a balanced equation for a chemical reaction that can be characte...

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  6. Name the law which requires the balancing of chemical equation.

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  7. What is meant by thermal decomposition reaction ? Explain with an exam...

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  8. {:(X + Y SO(4) to X SO(4) + Y),(Y + X SO(4) to "No reaction"):} Of t...

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  9. Write a complete balanced chemical equation for the following reaction...

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  10. On heating copper powder in air, the surface of copper powder becomes ...

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  11. Write the essential condition for the following reaction to take place...

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  12. Write the chemical formula of rust.

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  13. Give an example of photochemical reaction.

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  14. What is combination reaction ? Give an example.

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  15. What happens when carbon dioxide gas is bubbled through lime water in ...

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  16. Identify the oxidising and reducing agent in the following reaction : ...

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  17. Write balanced chemical equation for the following reaction : Natura...

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  18. Give one example each of (i) change in state (ii) evolution of a gas.

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  19. Why does silver chloride turn grey in sunlight ?

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  20. Name two metals which donot get corroded.

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