Practice MCQ Questions and answers on Chemistry-GK

Sunflower oil is high in the essential vitamin E and has no essential saturated fat.

Oligosaccharides are formed when two or more monosaccharides join together by O-glycosidic bonds. It is an example of sucrose.

Number of hydrogen atoms in a Glucose molecule is 12.

Bagasse is the dry pulpy fibrous residue that remains after sugarcane or sorghum stalks are crushed to extract their juice.

Nitrogen is a major essential element for all organisms, and a constituent of proteins, nucleic acids and other indispensable organic compounds.

Vitamins are super important for your body to work well! We can divide them into two main groups based on how your body handles them:

1. Water-soluble vitamins:
These vitamins, as the name suggests, dissolve in water. Your body doesn't store large amounts of them. If you take in more than your body needs, the extra amount is usually excreted in your urine. Think of it like pouring sugar into water – it dissolves and can easily be washed away. The main water-soluble vitamins are the Vitamin B complex (which includes many types like B1, B2, B3, B6, B12) and Vitamin C.

2. Fat-soluble vitamins:
These vitamins dissolve in fat. Your body can store these vitamins, mainly in your liver and fatty tissues, for a longer time. They are not easily flushed out with urine. The fat-soluble vitamins are Vitamin A, Vitamin D, Vitamin E, and Vitamin K.

Now let's look at the options given in the question:

* Vitamin A: This is a fat-soluble vitamin, so it's stored and not usually excreted in urine.
* Vitamin B: This is a water-soluble vitamin, so excess amounts are excreted in urine.
* Vitamin C: This is also a water-soluble vitamin, so excess amounts are excreted in urine.
* Vitamin D: This is a fat-soluble vitamin, so it's stored and not usually excreted in urine.
* Vitamin E: This is a fat-soluble vitamin, so it's stored and not usually excreted in urine.

Since the question asks which vitamins are excreted in urine, we are looking for the water-soluble ones.

From the options, Vitamin B and Vitamin C are the water-soluble vitamins.

So, the correct answer is Option B: Vitamin B and C.

Atomic absorption spectroscopy is an analytical chemistry technique used for determining concentration of particular metal element and is widely used in pharmaceutics. It was used for the determination of cobalt in Vitamin B₁₂.

Components of Milk : Water (87 percent), Carbohydrate (4.9 percent), Fat (3.4 percent), Protein (3.3 percent), and so on.

Cane-sugar is carbohydrate and as this name implies, is composed of carbon, hydrogen and oxygen. it is a source of extracting sugar. There are various types of sugar derived from different sources. Simple sugars are called monosaccharides and include glucose, fructose and galactose. The table or granulated sugar most customarily used as food is sucrose, a disaccharide. Other disaccharides include maltose and lactose.

There are 6 atoms of oxygen in a glucose molecule.