Q:

Washing soda is

A) sodium hydroxide	B) sodium carbonate
C) sodium bicorbonate	D) Potassium chloride

Answer & Explanation Answer: B) sodium carbonate

Explanation:

Sodium hydroxide - NaOH is caustic soda

Sodium carbonate - Na2CO3 is washing soda

Sodium bicarbonate - NaHCO3 is baking soda

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Filed Under: Chemistry
Exam Prep: AIEEE

7 5580

Q:

The Hardest substance available on Earth is

A) Diamond	B) Wurtzite
C) Platinum	D) Gold

Answer & Explanation Answer: A) Diamond

Explanation:

Diamond is the hardest substance available on Earth.

The_Hardest_substance_available_on_Earth_is1558506581.png image

Diamond is the hardest substance available on Earth due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms. A covalent bond is very strong and requires a large amount of energy to break itself, and diamond has many covalent bonds.

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Filed Under: General Awareness
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: IT Trainer , Bank PO , Bank Clerk , Analyst

8 5579

Q:

Dr. Linus Carl Pauling is the only person to have won two Nobel prizes individually for

A) Chemistry in 1954, Peace Prize in 1962	B) Peace Prize in 1954, Chemistry in 1962
C) Physics in 1954, Medicine in 1962	D) Medicine in 1954, Physics in 1962

Answer & Explanation Answer: A) Chemistry in 1954, Peace Prize in 1962

Explanation:

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Filed Under: General Awareness

8 5576

Q:

Frederick Sanger is a twice recipient of the Nobel Prize for

A) Chemistry in 1958 and 1980	B) Physics in 1956 and 1972
C) Chemistry in 1954 and Peace in 1962	D) Physics in 1903 and Chemistry in 1911

Answer & Explanation Answer: A) Chemistry in 1958 and 1980

Explanation:

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Filed Under: General Awareness

11 5574

Q:

Group displacement law was given by

A) Bacquerel	B) Rutherford
C) Mendeleaf	D) Soddy and Fajan

Answer & Explanation Answer: D) Soddy and Fajan

Explanation:

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Filed Under: Chemistry

8 5573

Q:

The method of Constitutional Amendment is provided in

A) Article 348	B) Article 358
C) Article 368	D) Article 378

Answer & Explanation Answer: C) Article 368

Explanation:

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Filed Under: Indian Politics

6 5572

Q:

Which of the following indicates the maximum number of entities that can be involved in a relationship?

A) Minimum cardinality	B) Maximum cardinality
C) ERD	D) Greater Entity Count (GEC)

Answer & Explanation Answer: B) Maximum cardinality

Explanation:

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Filed Under: Database

1 5566

Q:

India first won the Olympic Hockey gold at

A) London	B) Berlin
C) Amstedam	D) Los Angeles

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