Milk tastes sour when kept in the open for sometime due to the formation of __________...? Mcqs

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Milk tastes sour when kept in the open for sometime due to the formation of __________...?

(A) lactic acid
(B) citric acid

(C) acetic acid
(D) carbonic acid

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Matter exists in______ states....?

(A) One
(B) Three

(C) Five
(D) None of these

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Most crucial step in natural growth in nutrient cycle is...?

(A) Nutrient cycle
(B) water cycle

(C) Nitrogen cycle
(D) None of these

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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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In Daniel cell ____ is used as cathode....?

(A) Zn
(B) Cu

(C) Sn
(D) Pb

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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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Roots, stem and leaves produce their offspring through _____...?

(A) Sexual Reproduction
(B) Fragmentation

(C) Binary Fission
(D) Asexual Reproduction

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According to the positions of effort, fulcrum, and load, levers are divided into...?

(A) Two kinds
(B) Three kinds

(C) Four kinds
(D) Five kinds

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Which process includes all of the other processes listed...?

(A) Absorption
(B) Assimilation

(C) Secretion
(D) Metabolism

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A ‘breath test’ used by traffic police to check drunken driving uses ____...?

(A) Turmeric on filter paper
(B) Silica gel coated with silver nitrate

(C) potassium permanganate-sulphuric acid
(D) Potassium dichromatic-sulphuric acid

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