Q:

karl Landsteiner discovered

A) Blood corpuscles	B) Blood groups
C) Blood vessels	D) Proteins in Blood

Answer & Explanation Answer: B) Blood groups

Explanation:

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Filed Under: Biology

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Q:

Yeast used in making bread is a

A) Fungus	B) Bacteria
C) Seed	D) Plant

Answer & Explanation Answer: A) Fungus

Explanation:

Yeast used in making bread is a Fungus.

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Filed Under: Biology
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Q:

Symbolic logic was discovered by ___________

A) Herman Hollerith	B) Vonn Neumann
C) George Boole	D) Sun Microsystem

Answer & Explanation Answer: C) George Boole

Explanation:

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Q:

A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

A) decreasing the radius of the capillary tube	B) increasing the radius of the capillary tube
C) increasing the height of water in the vessel	D) None of these

Answer & Explanation Answer: A) decreasing the radius of the capillary tube

Explanation:

The water rise in a capillary tube dipped in water is such that the weight of water in the tube above the surface of water in the vessel is equal to the upward force due to surface tension. So it is clear that if the bore to the tube is decreased , the height of the water column in it must be greater.

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Filed Under: Physics

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Q:

A composite attribute is which of the following?

A) An attribute that can be broken into components	B) An attribute that cannot be broken into components
C) Multiple attributes	D) An identifier

Answer & Explanation Answer: A) An attribute that can be broken into components

Explanation:

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Filed Under: Database

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Q:

The Cholas were the only known rulers in the history of india to have undertaken successful overseas naval expeditions. Who of the following Chola rulers successfully invaded Laccadives, Maldives, Sri Lanka and Sumatra?

A) Parantaka - I	B) Rajaraja - I
C) Rajendra - I	D) Both (b) and (c)

Answer & Explanation Answer: C) Rajendra - I

Explanation:

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Filed Under: Indian History

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Q:

"Welcome Each Rebuff" is the autobiography of

A) MC Chagla	B) Khushwant Singh
C) Saleem Peeradina	D) Maudi Ali Mirza

Answer & Explanation Answer: D) Maudi Ali Mirza

Explanation:

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Filed Under: General Awareness

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Q:

Which statement about electrons and atomic orbitals is NOT true?

A) An orbital can contain a minimum of two electrons	B) An electron has the same amount of energy in all orbitals
C) An atom’s lowest energy level has only two orbitals	D) All of the above

Answer & Explanation Answer: D) All of the above

Explanation:

Yes, all the given statements are NOT true about electrons and atomic orbitals.

True statements are ::

An orbital can contain a maximum of two electrons.

An atom’s lowest energy level has only one orbital.

An electron has different amount of energies in all orbitals.

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Filed Under: Chemistry
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