MCQ
Smooth leaved and necterless cotton varieties are NOT affected by ____________.
- AFruit borers
- ✓Bollworms
- CJassids
- DEastern borers
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i. The colour of colloidal dispersion depends on size of colloidal particles.
ii. Tyndall effect is used to distinguish between colloidal dispersion and true solution.
iii. Eosin and congo red are examples of negatively charged sols.
