The most difficult organic chemistry riddlesChemistry quiz
What is the effect of nicotinic acid on human organism?
it is neutral
It is harmful, causes cancer
It is highly toxic, kills in 10 seconds
It is essential for functioning
Nicotinic acid, better known as niacin or vitamin B3, has nothing in common with tobacco. Chronic lack of niacin leads to pellagra, a vitamin deficiency disease.
Which acid causes the sourness of green apples?
Malic acid is more sour than citric acid, and is the source of extreme tartness in so-called extreme candy. Malic acid occurs naturally in all fruits and many vegetables.
What is the common name for acetylsalicylic acid?
Aspirin has an antiplatelet effect. Low doses of aspirin may be given immediately after a heart attack to reduce the risk of another heart attack or of the death of cardiac tissue.