Carbohydrates are large molecules with the molecular formula C(_x)(H(_2)O)(_y). In which of the following pairs is x not equal to y?
-
A.
glucose and starch -
B.
maltose and starch -
C.
sucrose and fructose -
D.
galactose and starch
Correct Answer: Option B
Explanation
Glucose = C(_6)(H(_2)O)(_6)
= C(_6)H(_{12})O(_6)
Maltose = C(_{12}) (H(_2)O)(_{11})
= C(_{12})H(_{22})O(_{11})
Starch = C(_6) (H(_2)O)(_5)
= C(_6)H(_{10})O(_5)
Sucrose = C(_{12}) (H(_2)O)(_{11})
= C(_{12})H(_{22})O(_{11})
Fructose = C(_6)(H(_2)O)(_6)
= C(_6)H(_{12})O(_6)
There is an explanation video available below.