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Question (41)

QN007301

Which statement is conceptually correct according to Dalton’s theory?

(A) Atoms lose identity during reactions
(B) Atoms retain identity during chemical reactions
(C) Atoms are created from heat
(D) Atoms disappear after compound formation

Correct Answer: B

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Question (42)

QN007302

Which postulate explains the formation of compounds like water and carbon dioxide?

(A) Atoms are indivisible
(B) Atoms combine in fixed whole-number ratios
(C) Atoms are invisible
(D) Atoms have no mass

Correct Answer: B

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Question (43)

QN007303

Which micro-component encourages students to think beyond memorising Dalton’s postulates?

(A) At a Glance
(B) Pause and Ponder
(C) Index
(D) Appendix

Correct Answer: B

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Question (44)

QN007304

Which Indian scientist mentioned in the chapter is associated with atomic research?

(A) C. V. Raman
(B) Raja Ramanna
(C) Homi Bhabha
(D) Vikram Sarabhai

Correct Answer: B

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Question (45)

QN007305

Dalton’s theory considered all atoms of an element to be identical in:

(A) Colour and texture
(B) Mass and properties
(C) Shape only
(D) Density only

Correct Answer: B

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Question (46)

QN007306

Which statement best reflects Dalton’s contribution?

(A) Discovery of electron
(B) Proposal of atomic structure with shells
(C) Scientific atomic explanation of matter
(D) Discovery of nucleus

Correct Answer: C

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Question (47)

QN007307

If atoms were destroyed during reactions, which law would fail?

(A) Conservation of Mass
(B) Reflection of Light
(C) Universal Gravitation
(D) Floatation

Correct Answer: A

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Question (48)

QN007308

According to Dalton’s Atomic Theory, the composition of compounds remains fixed because:

(A) Atoms combine randomly
(B) Atoms combine in definite ratios
(C) Atoms disappear during reactions
(D) Atoms are weightless

Correct Answer: B

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Question (49)

QN007309

Which statement about chemical compounds agrees with Dalton’s theory?

(A) Their composition changes with source
(B) They contain atoms in fixed ratios
(C) They are always gaseous
(D) They have no definite formula

Correct Answer: B

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Question (50)

QN007310

Dalton’s Atomic Theory laid the foundation for:

(A) Modern chemistry
(B) Astronomy only
(C) Genetics only
(D) Computer science

Correct Answer: A

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Question (41)

Which statement is conceptually correct according to Dalton’s theory?

Explanation:

Link:

Question (42)

Which postulate explains the formation of compounds like water and carbon dioxide?

Explanation:

Link:

Question (43)

Which micro-component encourages students to think beyond memorising Dalton’s postulates?

Explanation:

Link:

Question (44)

Which Indian scientist mentioned in the chapter is associated with atomic research?

Explanation:

Link:

Question (45)

Dalton’s theory considered all atoms of an element to be identical in:

Explanation:

Link:

Question (46)

Which statement best reflects Dalton’s contribution?

Explanation:

Link:

Question (47)

If atoms were destroyed during reactions, which law would fail?

Explanation:

Link:

Question (48)

According to Dalton’s Atomic Theory, the composition of compounds remains fixed because:

Explanation:

Link:

Question (49)

Which statement about chemical compounds agrees with Dalton’s theory?

Explanation:

Link:

Question (50)

Dalton’s Atomic Theory laid the foundation for:

Explanation:

Link:

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