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Lemon juice, orange juice, curd, sugar, common salt, Amla, baking soda, cucumber, etc,.
Lemon juice, orange juice, curd, sugar, common salt, Amla, baking soda, cucumber, etc,.
Reference links
Reference links
[https://dsert.kar.nic.in/kalikachetarike/7thEngScienceLS.pdf Kalika chetharike Material], https://www.youtube.com/watch?v=eUejqjWC8Ws&list=PLj2EUkWt-rYYrW4F_jtKRCvjiu3i0OYL9&index=2
[https://dsert.kar.nic.in/kalikachetarike/7thEngScienceLS.pdf Kalika chetharike Material], [https://www.youtube.com/watch?v=eUejqjWC8Ws&list=PLj2EUkWt-rYYrW4F_jtKRCvjiu3i0OYL9&index=2 Litmus Paper test to detect Acid, Bases and Neutral substance]
Acid and Base:
Process:
Process:
Litmus paper as indicator:
{| class="wikitable"
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!Substance
!Blue/Red litmus
!Change in color
!Acid and base
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