Q:

Electrons in the highest energy level of an atom are called ________.

A) valence protons	B) orbital protons
C) valence electrons	D) orbital electrons

Answer & Explanation Answer: C) valence electrons

Explanation:

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1 1393

Q:

Atomic number of which of the following elements is greater than that of Fluorine?

A) Sodium	B) Beryllium
C) Nitrogen	D) Boron

Answer & Explanation Answer: A) Sodium

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0 1393

Q:

Oxide of which of the following will turn red litmus blue?

A) Magnesium	B) Phosphorus
C) Sulphur	D) Carbon

Answer & Explanation Answer: A) Magnesium

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2 1392

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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1 1392

Q:

The line of Cancer does NOT pass through which of the following state of India?

A) Odisha	B) Gujarat
C) Rajasthan	D) West Bengal

Answer & Explanation Answer: A) Odisha

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1 1392

Q:

The famous 'Hawa Mahal' is in which city of Rajasthan?

A) Ajmer	B) Jodhpur
C) Jaipur	D) Kota

Answer & Explanation Answer: C) Jaipur

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0 1392

Q:

Two chords AB and PQ of a circle intersect at D inside a circle. If AD = 4 cm, DB = 6 cm, QD = 3 cm, the length of PQ is equal to

A) 11 cm	B) 8 cm
C) 9 cm	D) 10 cm

Answer & Explanation Answer: A) 11 cm

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Filed Under: Quantitative Aptitude - Arithmetic Ability

0 1392

Q:

Who invented Antibiotics?

A) Joseph Lister	B) William Harvey
C) Robert Knock	D) Alexander Fleming

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