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1266. The metallic constituents of hard water are :
A. magnesium, calcium and tin
B. iron, tin and calcium
C. calcium, magnesium and iron
D. magnesium, tin and iron
Explanation:
1267. When a cell neither shrinks nor swells when kept in a fluid, then the fluid in the cell in relation to ambient fluid is called :
A. Hypertonic
B. Hypotonic
C. Isotonic
D. Hyalotonic
Explanation:
1268. Carbon, diamond and graphite are together called :
A. isomers
B. allotropes
C. isomorphs
D. isotopes
Explanation:
1269. In which of the following processes light energy is converted into chemical energy ?
A. Respiration
B. Fermentation
C. Photosynthesis
D. Photorespiration
Explanation:
1270. Amnesia is related to :
A. sleeping sickness
B. loss of sight
C. loss of hearing
D. loss of memory
Explanation:
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