Question

kell an indicator changes colour with a base, it does not change
with an acid
(d) Change of colour in an acid and a base depends on the type of the
Indicator
Which of these statements are correct?
(1) All four (1) a and d (1) be and
d only d
Extended Learning - Activities and Projects
1. Using the knowledge of acids and bases, write a secret message with
the help of baking soda and beetroot. Explain how it wonos.
(Hint: Prepare baking soda solution in water. Use this solution to write
the message on a sheet of white paper with a cotton bud. Rub a slice of
fresh beet root over the message.)
2. Prepare red cabbage Juice by boiling a piece of red cabbage in water
Use it as an indicator and test the acidic and basic solutions with
Present your observations in the form of a table.
3. Bring the soil sample of your area, find out if it is acidic, basica​

Answer 1

Answer:

The direction of the conventional current is from positive to the negative termianl of the battery.

Where as the electrons flow from the negative terminal of the battery to the positive terminal of the battery which is exactly opposite to the conventional direction.

Here the conventional current is nothing but from the olden days we are following this direction conventionally as the previous scientists belived that the positive charges moves always, but the positive charges cannot move in the solids.

Explanation: