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Carbohydrates have the general formula Cx(H2O)y. In which of the following pairs is x not equal to y?
glucose and starch
maltose and starch
sucrose and fructose
The isomers of C3H8O are
1‑propanol and 2‑propanol
1‑propanol and 1‑propanol
2‑propanol and 2‑propanone
2‑propanol and 1‑propanol
Alkanals can be distinguished from alkanones by reaction with
Sudan III stain
starch iodide paper
lithium tetrahydridoaluminate(III)
Fehling’s solution
Geometric isomerism can exist in
hex‑3‑ene
hexane
prop‑1‑ene
3‑methylbut‑1‑ene
Which of the following metals is the least reactive?
Pb
Sn
Hg
Au
