Question

Notes : All questions are compulsory
A) Choose the correct option and rewrite the statement.5
1) The number of electrons in the outermost shell of
alkali metals is
a) 1
b) 2 c) 3
d) 7
2) If the refractive index of glass with respecl to air is 32
what is the refractive index of air with respect to glass?
1
b) 3
c)
1
d) 34
a
2
3
3) What is the colour of a solution formed on dipping a
piece of znic in dilute sulphur acid
a) colourless b) colourless solution become​

Answer 1

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