Q:

Which one of the following statements is correct?

A) The oxidation number for hydrogen is always zero.	B) The oxidation number for hydrogen is always + 1.
C) The oxidation number for hydrogen is always -1.	D) Hydrogen can have more than one oxidation number.

Answer & Explanation Answer: D) Hydrogen can have more than one oxidation number.

Explanation:

Hydrogen has two possible oxidation numbers: +1 and -1.

-1 in case of hydrides.

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Filed Under: Chemistry
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Q:

By volume, 78% of air is _______________

A) nitrogen	B) oxygen
C) hydrogen	D) helium

Answer & Explanation Answer: A) nitrogen

Explanation:

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Filed Under: Chemistry
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Q:

Which of the following type of medicine is used for treating indigestion?

A) Antibiotic	B) Analgesic
C) Antacid	D) Antiseptic

Answer & Explanation Answer: C) Antacid

Explanation:

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Filed Under: Biology
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Q:

Which of the following is a vertebrate?

A) Kiwi	B) Sponges
C) Star fish	D) Threadworm

Answer & Explanation Answer: A) Kiwi

Explanation:

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

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Q:

According to the provisions of the Constitution of India, which one of the following is nota fundamental duty?

A) To respect the National Flag	B) To defend the country
C) To provide education to one’s child	D) To promote village and cottage industries

Answer & Explanation Answer: D) To promote village and cottage industries

Explanation:

Article 43 also places upon the State the responsibility of promoting cottage industries, and the federal government has, in furtherance of this, established several Boards for the promotion of khadi, handlooms etc., in coordination with the state governments. It is a DPSP.

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Filed Under: Indian Politics
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Q:

The quantum theory of light was given by

A) Einstein	B) Newton
C) Plank	D) Faraday

Answer & Explanation Answer: C) Plank

Explanation:

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Filed Under: Physics
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Q:

Find equation of the perpendicular to segment joining the points A(0,4) and B(-5,9) and passing through the point P. Point P divides segment AB in the ratio 2:3.

A) x - y = 8	B) x - y = -8
C) x + y = -8	D) x + y = 8

Answer & Explanation Answer: B) x - y = -8

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

Who is the author of "The Hungry Tide"?

A) Amitav Ghosh	B) Mitali Meelan
C) Ravinder Singh	D) Sudha Murty

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