Q:

Communication by touch is called

A) Haptics communication	B) Proxemics communication
C) Semantics communication	D) Chronemics communication

Answer & Explanation Answer: A) Haptics communication

Explanation:

Communication by touch is called Haptics communication and the study of this is called as Haptics.

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Filed Under: General Science
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0 43797

Q:

Lime water becomes white due to which gas?

A) CO2	B) O2
C) NO2	D) N2

Answer & Explanation Answer: A) CO2

Explanation:

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1 43779

Q:

Who first discovered the every eighth element had properties similar to that of the first?

A) Newlands	B) Moseley
C) Dobereiner	D) Mendeleev

Answer & Explanation Answer: A) Newlands

Explanation:

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1 43750

Q:

What is black when you buy it, red when you use it, and gray when you throw it away?

A) Shoe	B) Charcoal
C) Belt	D) All the above

Answer & Explanation Answer: B) Charcoal

Explanation:

What_is_black_when_you_buy_it,_red_when_you_use_it,_and_gray_when_you_throw_it_away1557491056.jpg image

It is Charcoal which is black when we buy it or when not being used. It gets red in appearance when put in use means to say when burning. And eventually when it's been consumed by fire or after getting burned out or used up, changes into ashes which look grey in color.

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145 43543

Q:

$1 k W h =__________\times 10^{6} J .$

A) 36	B) 3.6
C) 6.4	D) 64

Answer & Explanation Answer: B) 3.6

Explanation:

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Q:

Group 8A of the periodic table contains the

A) least reactive metals	B) most reactive nonmetals
C) most reactive metals	D) least reactive nonmetals

Answer & Explanation Answer: D) least reactive nonmetals

Explanation:

Helium (He), Neon(Ne), Argon(Ar), Krypton (Kr), Xenon (Xe), Radon (Rn) and Ununoctium (Uuo) are present group 8A.

They have fully filled orbitals and hence are most stable amongst all the elements in the periodic table and are considered as least reactive least reactive non-metals.

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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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Filed Under: Chemistry
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Q:

Milk of Magnesia is used as a

A) Laxative	B) Pain killer
C) Sedative	D) Antibiotic

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