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Q:

The substances that are composed of to or more different elements in fixed proportion by mass are called

A) mixture B) compound
C) element D) None of these
 
Answer & Explanation Answer: B) compound

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Filed Under: Chemistry

Q:

The law of constant proportions was enunciated by

A) Dalton B) Berthelot
C) Avogadro D) Proust
 
Answer & Explanation Answer: D) Proust

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Filed Under: Chemistry

Q:

Sodium carbonate crystal lose water molecules this property is called

A) hygroscopy B) deliquescence
C) efflorescence D) None of these
 
Answer & Explanation Answer: C) efflorescence

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Filed Under: Chemistry

Q:

Masses of stars and galaxies are usually expressed in terms of

A) neutron mass B) earth's mass
C) solar mass D) lunar mass
 
Answer & Explanation Answer: C) solar mass

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Filed Under: Physics

Q:

The minimum number of Non zero non collinear vectors required to produce a zero vector is

A) 3 B) 2
C) 4 D) 1
 
Answer & Explanation Answer: A) 3

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Filed Under: Physics

Q:

Distance of stars are measured in

A) Galactic unit B) seller mile
C) Cosmic Kilometre D) Light year
 
Answer & Explanation Answer: D) Light year

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Filed Under: Physics

Q:

Which of the following is a vector quantity

A) momentum B) pressure
C) Energy D) work
 
Answer & Explanation Answer: A) momentum

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Filed Under: Physics

Q:

Which of the following is not a vector quantity?

A) speed B) velocity
C) torque D) displacement
 
Answer & Explanation Answer: A) speed

Explanation:

Which_of_the_following_is_not_a_vector_quantity1552385336.png image

A vector quantity is a quantity which has both magnitude and direction. Here in the given options, speed is a scalar quantity but not the vector quantity.

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Filed Under: Physics
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