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"A + B to Salt + water". It was written ...

"A + B `to` Salt + water". It was written on the blackboard. To find the nature of the substances A and B, ·ask some questions.

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1} Which substance turns red litmus into blue, A or B ?
2) Which substance is obtained from metal oxide ?
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VGS PUBLICATION-BRILLIANT-ACIDS, BASES AND SALTS -Section-2
  1. Give some examples for hydrous and anhydrollls salts.

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  2. X is a substance, which was given red colour ,ivith methyl orange solu...

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  3. "A + B to Salt + water". It was written on the blackboard. To find the...

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  4. There are 3 substances in test tube A, test tub1e B and test tube C. B...

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  5. Suggest to your friend, the substances required to prepare sodium zinc...

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  6. X' is a substance which gives CO2 , water and. common salt on adding H...

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  7. Observe and prepare two questions while doillLg the following activity...

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  8. Predict 'X' from the given figure. If X+basetowater+NaCl

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  9. Guess the reason for that the HCl, evolved in the reaction. 2NaCl+H2S...

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  10. What happens when Mg(OH)2 is dissolved in water?

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  11. x' ions cannot exist as bare ions. They associate with water molecules...

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  12. Which one of the following is preferred to control the acidity? Why?

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  13. What is the nature of the salt CaSO4 formed by the reaction between ca...

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  14. Why do acids not show acidic behaviour in the absence of water?

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  15. Why pura acetic acid does not turn blue litmus to red?

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  16. Which substance / tool is used to test the gases, H2 and CO2?

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  17. Name the required substances to perform a neutralization reaction in y...

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  18. What precaution to be taken while diluting the con. Acid?

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  19. How do Plaster of Paris obtain from gypsum?

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  20. What is the change you observe in litmus paper with acid ?

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