Question

Open it and please answer correct .​

Answer 1

Answers:-

1:Find the odd one*

==>CO2

2:-Which of the following is not an alkali*

==>CU(OH)2

3:Match the followings*

==>1-H2SO4

2-NAOH

3-BE(OH)2

4-NACL

4:A student collected rain water near the factory and tested with universal indicator. The colour of the solution*

==>Blue

5:What happen when an acid is added to water*

==>A-Hydrogen ion concentration increases

6:On putting two drops of dil. KOH on the pH paper, the colour would be*

==>Red

7:-Revati observed that the colour of pH changes to green when she dipped it in water. She added a few drops of sodium hydroxide to the water. The colour of pH paper turns to*

==>Dark blue

8:-Zn+2NaOH*==>

==>Zno+h2+na2o

9:-Which of the following is not related to sodium hydrogen carbonate*

==>Mild antiseptic

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