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Subjects
Science CBSE
Class 7
Acids, bases and salts
Textbook questions
15.
NCERT Exemplar IV
Exercise condition:
2
m.
1.
When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?
Slaked lime
Organic matter
Calamine solution
Quick lime
2.
‘Litmus’, a natural dye is an extract of which of the following?
China rose (Gudhal)
Lichen
Beetroot
Blue berries (Jamun)
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