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Fill in the Blank. Blue litmus paper tur...

Fill in the Blank.
Blue litmus paper turns…..colour in tamarind solution.

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Blue litmus turns red in

A solution turns red litmus paper to blue colour.The nature of the solution is _____.

Mounica observed that the dry HCl gas was not turned the dry blue litmus paper into red colour. Jahnavi explained the reason to Mounica by asking her some questions. What would be those questions ?

Rearrange the following sentences is a correct order (i)Collect the white ash and dissolve it in a little water(ii) The red litmus turns into blue colour and so the solution is basic in nature. (iii) Burn a small piece of Magnesium ribbon by holding it with tongs(iv) Touch the solution formed and test this solution with blue litmus and red litmus.

Test the following salt substances with red litmus and blue litmus papers. Record your observations in the table.

Testing the acids and bases with indicators viz .. Red litmus, blue litmus, phenolphthalein solution and methyl orange solution.

Padma took a little sodium hydroxide in a beaker and dipped a red litmus paper into it. She observed red litmus paper turned blue. She took dilute hydrochloric acid in the same beaker and dipped a blue litmus paper into it. The blue litmus paper did not turn red. Why ?

Observe the following table. If red litmus paper is dipped in solution A, what Is the change that you observed ? Why ?

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SRS PUBLICATION-NATURE OF SUBSTANCES-QUESTION BANK
  1. Fill in the Blank. Taste of an acid is …..

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  2. Fill in the Blank. The pH of a substance is 0. It indicates that the s...

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  3. Fill in the Blank. Blue litmus paper turns…..colour in tamarind soluti...

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  4. Fill in the Blank. The nature of an antacid is…..

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  5. Fill in the Blank. Acid + base rarr….. + …..

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  6. Choose the correct Answer Colour of turmeric solution in acids

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  7. Choose the correct Answer Example to an acid

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  8. Choose the correct Answer Main component of soap is…..

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  9. If you heat baking soda, which gas is released?

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  10. Choose the correct Answer To treat acidic nature of the soil, farmers ...

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  11. Matching

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  12. Write the differences between acids and bases.

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  13. Answer the following question Give examples to different types of aci...

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  14. Answer the following question One substance is slippery to touch and ...

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  15. Answer the following question Guess, how do you test acetic acid, if ...

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  16. Answer the following question Anitha's mother filled mango pickle in ...

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  17. What are the substances required to perform a neutralization reaction ...

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  18. Answer the following question Draw a neat diagram of arrangement of a...

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  19. Answer the following question How do you appreciate the role of bases...

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  20. Answer the following question What measures do you follow to prevent ...

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