Chemistry SSC MTS Questions

SSC MTS-General Awareness

Chemistry MCQ Questions


1.
What is the name of the seventh most abundant metal in the earth's crust, which is derived from the medieval Latin word 'Kalium'?
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A.
Aluminium
B.
Magnesium
C.
Calcium
D.
Potassium
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ANSWER :
D. Potassium
2.
Which soft metal in group 1 of the periodic table tarnishes within a few seconds of exposure to air?
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A.
Barium
B.
Sodium
C.
Strontium
D.
Francium
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ANSWER :
B. Sodium
3.
How many elements are listed in the modern periodic table?
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A.
107
B.
81
C.
91
D.
118
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ANSWER :
D. 118
4.
Which chemical element with atomic number 35 has a dark reddish-brown liquid with a burning pungent odour?
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A.
Tennessine
B.
Chlorine
C.
Astatine
D.
Bromine
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ANSWER :
D. Bromine
5.
Which is the most common ore of oxidised mercury that occurs in granular crusts or veins associated with volcanic activity and hot springs?
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A.
Diaspore
B.
Siderite
C.
Cinnabar
D.
Corundum
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ANSWER :
C. Cinnabar
6.
Which theory was published by John Dalton in 1808 to explain chemical reactions?
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A.
Atomic theory
B.
Valence bond theory
C.
Quantum field theory
D.
Molecular orbital theory
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ANSWER :
A. Atomic theory