HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Stachyose is an example of _______.

(A) monosaccharides

(B) disaccharides

(C) trisaccharides

(D) tetrasaccharides

Draw a neat, labelled energy profile diagram for SN¹ reaction mechanism.

What is the action of nitrous acid on secondary nitroalkane?

What is the action of nitrous acid on tertiary nitroalkane

Write 'two' uses of phenol.

What happens when glucose is treated with Bromine water

What happens when glucose is treated with - Dilute nitric acid

What happens when glucose is treated with Hydrogen cyanite (HCN).

The half-life period of zero order reaction A → product is given by

(a) `([A]_0)/k`

(b) `0.693/k`

(c) `[A]_0/(2k)`

(d) `(2[A]_0)/k`

Draw a neat and labelled diagram of the lead storage battery.

Write balanced chemical equations for Phosphorus reacts with magnesium

Write balanced chemical equations for Flowers of sulphur boiled with calcium hydroxide

Write balanced chemical equations for Action of ozone on hydrogen peroxide.

Calculate the internal energy at 298K for the formation of one mole of ammonia, if the enthalpy change at constant pressure is – 42.0 kJ mol^-1.

(Given: R = 8.314 J K^-1 mol^-1)

Calculate the internal energy at 298K for the formation of one mole of ammonia, if the enthalpy change at constant pressure is – 42.0 kJ mol^-1.

(Given: R = 8.314 J K^-1 mol^-1)

Explain the preparation and uses of nylon-2-nylon-6.

How is glucose prepared from cane sugar (sucrose)?

Write the formula of the complex copper (II) hexacyanoferrate (II).

Draw the structures of the HClO₃.

How is glucose prepared by commercial method? How is peptide linkage formed?