Question

what is handpump? explain briefly​

Answer 1

Answer:

Yes, it is grammatically correct. Some people will tell you that there is a rule in English grammar that you cannot use the possessive apostrophe-s with inanimate objects, because objects cannot “own” things. They are mistaken. While it is called “possessive” case, it really applies to all kinds of associations. If that weren’t true, you could not use the pronoun its. You couldn’t say, “I have to fix my kitchen chair. Its leg is broken.”

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That said, your example might not be the best use of this construction. More typical would be “the chair leg” or “the leg of the chair.” I think that phrasing it as “the chair’s leg” is implicitly saying it is not some other part of the chair that broke.