No reaction take place as zinc is less reactive than aluminium and cannot displace aluminium from its salt solution Al₂(SO₄)₃.

All the reflected light rays converge and pass through the focus (F) of a concave mirror. Since the focus of a concave mirror is in front of the mirror, the screen has to be placed parallel in front of the ...

The experiment should be performed on the same wall as the window. Rays from infinity will be focus at the focal point of the mirror.

We know that the external medium is hypertonic (where a solution containing lower concentration of solutes as compared to another cell) the root cells in contact with the soil actively take up ions. This creates a difference in the concentration ...

Out of the metals Mg, Zn, Fe and Al, Mg will react most vigorously with dilute acid, followed by Al, Zn and Fe