Chemistry Question Bank

Methyl –D-glucoside and methyl –D- glucoside are

During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process are respectively

Which one of the following vitamins is water soluble?

Which one of the following is a peptide hormone ?

Assertion: Maltose is a reducing sugar which gives two moles of D-glucose on hydrolysis. Reason: Maltose has a 1,4’- -glycosidic linkage.

Assertion: Hydrolysis of sucrose is known as inversion of cane sugar. Reason: Sucrose is a disaccharide.

Assertion: Glucose does not give 2, 4- DNP test. Reason: Glucose exists in cyclic hemiacetal form.

Assertion: In sucrose two sugar units are joined by 1, 2-glycosidic bond Reason: It joins C₁ of -glucose and C₂ of -fructose by glycosidic bond.

Assertion (A) Glucose gives reddish brown precipitate with Fehling solution. Reason (R) Reaction of glucose with Fehling solution gives CuO and gluconic acid.

Assertion (A) Deoxyribose, C₅H₁₀O₄ is not a carbohydrate. Reason: (R) Carbohydrates are hydrates of carbon so compounds which follow Cx(H₂O)y formula are carbohydrates.

Assertion: Proteins on hydrolysis produce amino acids. Reason: Amino acids contain –NH₂ and –COOH groups.

Assertion: Alpha -amino acids exist as internal salt in solution as they have amino and carboxylic acid groups in near vicinity. Reason: H ion given by carboxylic group (– COOH) is captured by amino group (–NH₂) havin…

Assertion: Activity of an enzyme is pH-dependent. Reason: Change in pH affects the solubility of the enzyme in water.

What reagent is used in the Rosenmund’s reduction ?

Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on further treatment with aqueous KOH yields compound F. Compound F is (a) (b) (c) (d)

The end product in the following sequence of reaction is

The IUPAC name of the following structure is

Which one of the following will most readily be dehydrated in acidic condition ? (a) (b) (c) (d)

Which of the following compound gives a ketone with Grignard reagent:

The smallest ketone and its next homologue are reacted with NH₂OH to form oxime

the compound (X) is

When a nucleophile encounters a ketone, the site of attack is

major product is (a) (b) (c) (d)

The major product obtained in the following reaction is : (a) (b) (c) (d)

The emission spectra of He⁺ ions show 6 different photons. What will be the minimum wavelength during the transition? (R_H = Rydberg constant)