Which of the following group is NOT Dobereiner Tri | Chemistry Questions & Answers

Q:

Which one is the pure element

A) glass	B) cement
C) sodium	D) None of these

Answer & Explanation Answer: C) sodium

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Q:

Air is

A) compound	B) element
C) mixture	D) solution

Answer & Explanation Answer: C) mixture

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Q:

Milk is a

A) mixture	B) element
C) metal	D) None of these

Answer & Explanation Answer: A) mixture

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Q:

Which one is not metal

A) sulpher	B) sugar
C) nitogen	D) all of these

Answer & Explanation Answer: D) all of these

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Q:

Antimony is

A) metal	B) non metal
C) non metaloid	D) metalloid

Answer & Explanation Answer: D) metalloid

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Q:

The substances that are composed of to or more different elements in fixed proportion by mass are called

A) mixture	B) compound
C) element	D) None of these

Answer & Explanation Answer: B) compound

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Q:

The law of constant proportions was enunciated by

A) Dalton	B) Berthelot
C) Avogadro	D) Proust

Answer & Explanation Answer: D) Proust

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Q:

Sodium carbonate crystal lose water molecules this property is called

A) hygroscopy	B) deliquescence
C) efflorescence	D) None of these

A) Li, Na, K	B) N, P Au
C) Cl, Br, I	D) Ca, Sr, Ba

Which of the following group is NOT Dobereiner Triads?

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