MCQ
The most appropriate statement regarding organic compounds is
- AThey possess ionic and covalent bonds
- BPresence of carbon is not essential
- ✓They are found in a large number
- DTheir reactions are fast
Organic compounds are formed from chains of covalently-linked Carbonatoms with hydrogen atoms attached to the chain.
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$^{200}X \,:\, 90\%$ $^{199}X\, :\, 8.0\%$ $^{202}X\, :\, 2.0\%$
The weighted average atomic mass of the naturally occurring element $X$ is closest to......$amu$


