Question

Some chemicals and apparatus are given in the box. Analyse this and complete
the worksheet given below.
Test tube, potassium permanganate, zinc, dilute HCI,
spirit lamp, moisture free boiling tube, match box, stand
a. Hydrogen
Chemicals and apparatus required
Procedure​

Answer 1

Answer:

Let the numerator be x

Denominator = x+2

When 1 is added to Denominator:-

Denominator = x+2+1=x+3

A.T.Q.

(x)/(x+3)=1/2

Cross multiplying

x+3=2x

2x-x=3

x=3

Original Numerator = x = 3

Original Denominator = x+2 = 3+2 = 5

Original fraction = 3/5

Verification:-

Fraction = 3/5

1 is added to the Denominator:-

3/(5+1) = 1/2

3/6 = 1/2

1/2 = 1/2

Hence verified

Explanation:

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