Maharashtra State BoardHSC Science (General) 11th
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Question Bank Solutions for HSC Science (General) 11th - Maharashtra State Board - Chemistry

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Chemistry
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Explain the following.

Hydrogen shows similarity with alkali metals as well as halogens.

[0.08] Elements of Group 1 and 2
Chapter: [0.08] Elements of Group 1 and 2
Concept: Hydrogen

Answer the following question.

Outline the industrial production of dihydrogen from steam. Also, write the chemical reaction involved.

[0.08] Elements of Group 1 and 2
Chapter: [0.08] Elements of Group 1 and 2
Concept: Hydrogen

Answer the following question.

Name the isotopes of hydrogen. Write their atomic composition schematically and explain which of these is radioactive?

[0.08] Elements of Group 1 and 2
Chapter: [0.08] Elements of Group 1 and 2
Concept: Hydrogen

Name the following.

A compound having hydrogen, aluminium, and lithium as its constituent elements.

[0.08] Elements of Group 1 and 2
Chapter: [0.08] Elements of Group 1 and 2
Concept: Hydrogen

Choose the correct option.

The unstable isotope of hydrogen is _________

[0.08] Elements of Group 1 and 2
Chapter: [0.08] Elements of Group 1 and 2
Concept: Hydrogen

Choose the correct option.

Identify the odd one.

[0.08] Elements of Group 1 and 2
Chapter: [0.08] Elements of Group 1 and 2
Concept: Hydrogen

Choose the correct option:

SI unit of mass is _________

[0.02] Introduction to Analytical Chemistry
Chapter: [0.02] Introduction to Analytical Chemistry
Concept: Introduction of Analytical Chemistry

What do you mean by SI units?

[0.02] Introduction to Analytical Chemistry
Chapter: [0.02] Introduction to Analytical Chemistry
Concept: Introduction of Analytical Chemistry

What is the SI unit of mass?

[0.02] Introduction to Analytical Chemistry
Chapter: [0.02] Introduction to Analytical Chemistry
Concept: Introduction of Analytical Chemistry

Define Analytical chemistry.

[0.02] Introduction to Analytical Chemistry
Chapter: [0.02] Introduction to Analytical Chemistry
Concept: Introduction of Analytical Chemistry

Choose the correct option.

The energy difference between the shells goes on ________ when moved away from the nucleus.

[0.04] Structure of Atom
Chapter: [0.04] Structure of Atom
Concept: Subatomic Particles

Choose the correct option.

The value of Plank’s constant is -

[0.04] Structure of Atom
Chapter: [0.04] Structure of Atom
Concept: Subatomic Particles

Make the pairs:

‘A’ ‘B’
a. Neutrons i. six electrons
b. p-orbital ii. -1.6×10-19 C
c. charge on electron iii. Ultraviolet region
d. Lyman series iv. Chadwick
[0.04] Structure of Atom
Chapter: [0.04] Structure of Atom
Concept: Subatomic Particles

Match the following:

Element No. of Neutron
a. \[\ce{^40_18AR}\] i. 7
b. \[\ce{^14_6C}\] ii. 21
c. \[\ce{^40_19K}\] iii. 8
d. \[\ce{^14_7N}\] iv. 22
[0.04] Structure of Atom
Chapter: [0.04] Structure of Atom
Concept: Subatomic Particles

If an element ‘X’ has mass number 11 and it has 6 neutrons, then write its representation.

[0.04] Structure of Atom
Chapter: [0.04] Structure of Atom
Concept: Subatomic Particles

An atom of an element contains 29 electrons and 35 neutrons. Deduce the number of protons.

[0.04] Structure of Atom
Chapter: [0.04] Structure of Atom
Concept: Subatomic Particles

An atom of an element contains 29 electrons and 35 neutrons. Deduce the electronic configuration of that element.

[0.04] Structure of Atom
Chapter: [0.04] Structure of Atom
Concept: Subatomic Particles

Choose the correct option.

Gum in water is an example of ______.

[0.11] Adsorption and Colloids
Chapter: [0.11] Adsorption and Colloids
Concept: Introduction of Adsorption

Choose the correct option.

In Haber process of production of ammonia K2O is used as ______.

[0.11] Adsorption and Colloids
Chapter: [0.11] Adsorption and Colloids
Concept: Introduction of Adsorption

Choose the correct option.

Fruit Jam is an example of ______.

[0.11] Adsorption and Colloids
Chapter: [0.11] Adsorption and Colloids
Concept: Introduction of Adsorption
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