SCIENCE CH-5 CLASS 7

NAME THE ACID FOUND IN CURD

• Formic acid

• Tartaric acid

• Lactic acid

HOW DO ACIDS TASTE?

• Bitter

• Sweet

• Salty

• Sour

WHAT IS THE NAME OF THE BASE USED TO NEUTRALIZE THE EFFECT OF ANT'S STING?

• Baking soda

• Sodium hydroxide

• Oxalic acid

• Magnesium hydroxide

CHINA ROSE TURNS IT'S COLOUR TO_______WHEN MIXED WITH ACID.

• GREEN

• PURPLE

• DARK PINK

• Yellow

NAME ONE SYNTHETIC INDICATOR.

• CHINA ROSE

• TURMERIC PASTE

• PHENOLPHTHALEIN

• LITMUS SOLUTION

NAME THE SOURCE FROM WHICH LITMUS SOLUTION IS OBTAINED

• LICHENS

• FUNGI

• SALT

• ALGAE