The electronic that have been knocked out of the outer most shell of an atom are known as...? Mcqs

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The electronic that have been knocked out of the outer most shell of an atom are known as...?

(A) Free Electrons
(B) Valence Electrons

(C) Core Electrons
(D) Conductors

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All of these are benefits of bacteria except ______...?

(A) Decomposition
(B) Oxygen Production

(C) Nitrogen Fixation
(D) None of these

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Which mineral is the present in nuts, seeds, dried figs, dried apricots, almond seed, corn, vegetables and fruits etc...?

(A) Magnesium
(B) Copper

(C) Iodine
(D) Sodium

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Which one of the following is not a sign of chemical change...?

(A) No change in composition
(B) A release of gas

(C) Change in colour, temperature, smell
(D) Production of a new material

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Lunar eclipse occurs on__________...?

(A) New Moon
(B) Full Moon

(C) Half Moon
(D) Quarter Moon

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According to Newton's law of universal gravitation force ∝ _______...?

(A) m1 m2
(B) 1/r2

(C) r2
(D) Both (a) and (b)

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The velocity of a wave is equal to ______...?

(A) Wavelength x Frequency
(B) Wavelength / Frequency

(C) Frequency / Wavelength
(D) Wavelength + Frequency

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The human heart is _______ ...?

(A) Ampullary Heart
(B) Pulsating Heart

(C) Myogenic Heart
(D) Neurogenic Heart

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The planet that moves round the Sun at the highest speed is_________...?

(A) Jupiter
(B) Venus

(C) Mars
(D) Mercury

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How many rows and columns are in the modern Periodic Table...?

(A) 18 columns and 7 rows
(B) 12 columns and 9 rows

(C) 7 columns and 18 rows
(D) 25 columns and 15 rows

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