Given below are two statements : Statement I : Denatured alcohol contains small quantity of methanol, a poisonous substance. Statement II : Methanol is poisonous because it gets oxidized to methanoic acid in liver, which coagulates the protoplasm. In the light of the above statements, choose the correct answer from the options given below:

Denatured alcohol

• Ethanol meant for industrial use is made unfit for drinking by adding poisonous substances such as methanol, and dyes are added to give it a colour so that it can be easily identified. This process is called denaturation of alcohol. Hence, statement I is true.
• Ingestion of even a small quantity of methanol can be lethal. In the liver methanol is oxidised to methanal and further to methanoic acid, and it reacts rapidly with the components of the cells, coagulating the protoplasm in much the same way as an egg is coagulated on cooking. Hence, statement II is true.
• Methanol also affects the optic nerve and can cause blindness.