Question

true Or false
5. The molecular formula of formaldehyde is HCHO.
6. If the power of convex lens is + 5.0 D, then its focal length is 50 cm.
7. The growth of a pollen tube towards the ovule is caused by chemotropism.​

Answer 1

Answer:

True

False

True

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Answer 2

1) True

2)False

3)True

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