MCQ
The nature of bonding in graphite is
- ✓Covalent
- BIonic
- CMetallic
- DCoordinate
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The number of following statements which is/are correct about phenolphthalein is $.....$.
$A$. It can be used as an indicator for the titration of weak acid with weak base.
$B$. It begins to change colour at $pH =8.4$
$C$. It is a weak organic base
$D$. It is colourless in acidic medium

