Question

please solve this multiple choice question.
class 10th
sub science

please please please answer me ​

Answer 1

Answer:

9-c

10-d

11-d

12-a

it is ri8 ans please follow me for more information

Answer 2

The correct answer is :

9) (b) Mg

10) (d) all of the above

11) (b) at twice the focal length

12) (b) HCl

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