ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 4

MEDIUM

11th ICSE

IMPORTANT

Earn 100

Out of ${Cu}^{2 +}$ , ${Fe}^{2 +}$ and ${Cr}^{3 +}$ , which ion is most paramagnetic and why?

Important Questions on Sample Question Paper 4

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 5

Why do elements in the same group have similar physical and chemical properties?

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 5

What is the IUPAC name, official name and symbol of the element with atomic number

110

?

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 6

Sulphuric acid is a very strong acid, yet it can also act as base in some reactions. Explain how?

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IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 6

All bronsted acids are not Lewis acids. Explain.

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IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 7

Hydrogen generally forms covalent compounds. Give reason.

HARD

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 7

How can the production of dihydrogen, obtained from coal gasification, be increased?

HARD

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 8

A common method of preparation of alkenes from alcohols involve heating the alcohol with a mineral acid. What is the mechanism of this dehydration?

MEDIUM

11th ICSE

IMPORTANT

ALL IN ONE ISC Chemistry CLASS 11>Chapter 18 - Sample Question Paper 4>SAMPLE QUESTION PAPER 4>Q 9

Define octet rule. Write its significance and limitations.