Fe is trivalent in which of the chemical compound:
Fe is trivalent in which of the chemical compound:
A. Fe (NO3)3
B. Fe2 (NO3)3
C. Fe3 (NO2)
D. None of these
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Moderately toxic compound:_________?A. Lead
B. Fluorine
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D. All of the aboveHighly specialized plants which reproduced by seeds are called__________________?
Highly specialized plants which reproduced by seeds are called__________________?A. Angiosperm
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B. Isomorphous substitution
C. Anion exchange
D. All of thesePlanting distance of about 10-15 meter is recommended for___________________?
Planting distance of about 10-15 meter is recommended for___________________?A. Apple
B. Mango
C. Datepalm
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