Questions

Q:

Which of the following elements has the lowest melting point?

A) Titanium B) Tungsten
C) Argon D) Nickel
 
Answer & Explanation Answer: C) Argon

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Q:

Who formulated ‘the atomic theory’ of a matter?

A) Avogadro B) Dalton
C) Newton D) Pascal  
 
Answer & Explanation Answer: B) Dalton

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Q:

According to an early Indian philosopher everything is made up of ___ basic elements.

A) 2 B) 4
C) 3 D) 5
 
Answer & Explanation Answer: D) 5

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Q:

Which of the following plays an important role in photosynthesis?

A) Chloroplast B) Centrosome
C) Tonoplast D) Nematoblast
 
Answer & Explanation Answer: A) Chloroplast

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Q:

Similipal Tiger Reserve is in which state?

A) Maharashtra B) Andhra Pradesh
C) Chhattisgarh D) Odisha
 
Answer & Explanation Answer: D) Odisha

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Q:

The oldest oil field in Asia is located in

A) Gujarat B) Assam
C) Arunachal Pradesh D) Nagaland
 
Answer & Explanation Answer: B) Assam

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Q:

Nepal does not share its border with which Indian state?

A) Uttarakhand B) Haryana
C) West Bengal D) Sikkim
 
Answer & Explanation Answer: B) Haryana

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Q:

Propyne and propene can be distinguished by

A) AgNO₃ in ammonia B) conc. H₂SO₄
C) dil. KMnO₄ D) Br₂ in CCl₄
 
Answer & Explanation Answer: A) AgNO₃ in ammonia

Explanation:

Propene, being an alkene, and propyne, being a alkyne, are distinguished using the common chemical tests namely ammoniacal silver nitrate or ammoniacal cuprous chloride. Ammoniacal silver nitrate is also called as Tollen's reagent.

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