Question

2. Iodine solution turns blue black in the presence of starch​

Answer 1

Answer:

Iodine solution is used to test the presence of starch in food materials. When iodine solution is added to a food item, it turns into blue-black colour if starch is present. If starch is not present, then the colour will stay orange or yellow

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Answer 2

Explanation:

Step-by-step explanation:

\begin{gathered}78 + 24 - 6 \: of \: 3 - (8 - 3) \times 8 \div 4 - 2 \\ 78 + 24 - 6 \: of \: 3 - 5 \times 8 \div 4 - 2 \\ 78 + 24 - 18 - 5 \times 2 - 2 \\ 78 + 24 - 18 - 10 - 2 \\ 102 - 30 = 72\end{gathered}

78+24−6of3−(8−3)×8÷4−2

78+24−6of3−5×8÷4−2

78+24−18−5×2−2

78+24−18−10−2

102−30=72