Q:

Which of the following statement(s) about acids is/are CORRECT ?

I. They change the color of red litmus to blue.
II. They change the color of blue litmus to red.
III. They have pH value less than 7.

A) Only I and III	B) Only II and III
C) Only I	D) Only II

Answer & Explanation Answer: B) Only II and III

Explanation:

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Filed Under: Chemistry
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0 41693

Q:

Consider the following constituent gases of the atmosphere :

1. Argon

2. Neon

3. Helium

4.Ceirbon dioxide

Which one of the following is the correct ascending sequence of the above gases in terms of the volume percentage?

A) 1-3-2-4	B) 1-4-2-3
C) 4-2-3-1	D) 2-4-1-3

Answer & Explanation Answer: B) 1-4-2-3

Explanation:

Composition of Dry Air (Substance, % by volume)

Nitrogen, N2 78.08

Oxygen, O2

20.95

Argon, Ar 0.93

Carbon dioxide, CO2 0.033

Neon, Ne 0.0018

Helium, He 0.00052

Methane, CH4 0.0002

Krypton, Kr 0.00011

Dinitrogen oxide, N2O 0.00005

Hydrogen, H2 0.00005

Ozone, O3 0.000001

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Q:

The human heart is

A) Neurogenic heart	B) Myogenic heart
C) Pulsating heart	D) Ampullary heart

Answer & Explanation Answer: B) Myogenic heart

Explanation:

Hearts are of several types. In some invertebrates the heart is simulated by the nervous system to do its work. Such hearts are called Neurogenic hearts. The Human heart is myogenic. i.e, it recieves the stimuli for contraction from the muscular node called sinu-auricular node or pace maker.

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Filed Under: Biology

807 41569

Q:

Out of all known elements, the minimum number is of ______.

A) Metals	B) Non-metals
C) Metalloids	D) No option is correct

Answer & Explanation Answer: C) Metalloids

Explanation:

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Q:

What was/were the formative influence(s)on the philosophy of Mahatma Gandhi?

1.Gandhiji was influenced by the 18th century Pranami sect that advocated the unity of faiths.

2.Gandhiji was influenced by the theosophists.

3.Gandhiji was an admirer of the writings of Romantics like Wordworth.

Select the correct answer using the code given below.

A) 1 and 2 only	B) 2 and 3 only
C) 1, 2 and 3	D) 1 only

Answer & Explanation Answer: C) 1, 2 and 3

Explanation:

All are correct

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Filed Under: Indian History
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0 41435

Q:

______________ among the following is not a type of JavaScript.

A) text/JavaScript	B) text/ecmascript
C) text/vbscript	D) JavaScript vbscript

Answer & Explanation Answer: D) JavaScript vbscript

Explanation:

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Filed Under: Computer
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Q:

Which of the following statements are CORRECT?

I. Esters are sweet smelling substance.
II Esters are used in making perfumes.
III. Functional group of ester is R-O-RꞋ.

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: A) Only I and II

Explanation:

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Q:

Which of the following is based on the principle of nuclear fusion?

A) Atomic bomb	B) Hydrogen bomb
C) Both Atomic and Hydrogen bomb	D) No option is correct

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