Brass gets discoloured in air because of the presence of which of the following gases in air ________ ...? Mcqs

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Brass gets discoloured in air because of the presence of which of the following gases in air ________ ...?

(A) Carbon dioxide
(B) Oxygen

(C) Nitrogen
(D) Hydrogen sulphide

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What is chemical symbol for Tungsten...?

(A) Z
(B) T

(C) Tn
(D) W

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Glucose syrup is made from__________...?

(A) oat
(B) wheat

(C) maize
(D) rice

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“Each electron in an atom must have its own unique set of quantum numbers” is a statement of_______________...?

(A) Aufbau principle
(B) Pauli exclusion principle

(C) Hund’s rule
(D) Periodic law

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In an atomic nucleus, neutrons and protons are held together by: ___________...?

(A) Gravitational forces
(B) Exchange forces

(C) Coulombic forces
(D) Magnetic forces

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A gas is a state of matter _______...?

(A) Definite volume and definite shape
(B) Definite volume and indefinite shape

(C) Indefinite volume and indefinite shape
(D) Indefinite volume and definite shape

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Who invented Logarithm Tables...?

(A) John Napier
(B) John Doe

(C) John Harrison
(D) John Douglas

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Which cells are responsible for vision in bright light and coloured vision...?

(A) Rod Cells
(B) Cone Cells

(C) Bipolar Cells
(D) Ganglion Cells

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Two fluorine atoms share one electron each in their outermost shell to achieve electronic configuration of ______...?

(A) Xe
(B) Ar

(C) Kr
(D) Ne

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Which processes involve mitosis...?

(A) Growth, reduction division and asexual reproduction
(B) Growth, repair and asexual reproduction

(C) Growth, repair and semiconservative replication
(D) Growth, reduction division and repair

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