Chemistry Practice Question and Answer
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Q:Read the following questions carefully and answer them.
“All the four quantum numbers of two electrons in an atom are not the same.” It is the law of —
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63aaa6fc5770eb565d4ff628- 1Hund’sfalse
- 2Exclusion Principle of Paulitrue
- 3Uncertainty Principle of Heisenbergfalse
- 4Avogadro’s Lawfalse
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Answer : 2. " Exclusion Principle of Pauli "
Q: Which fibre is used for making bristles of brushes.
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6389b84734f83f147273cfcb- 1Kevlarfalse
- 2Nylon-66true
- 3Terylenefalse
- 4Lexanfalse
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Answer : 2. "Nylon-66"
Q: Which of the given metals cannot be extracted using smelting?
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62f10b533342ab11842d1eb2- 1Fefalse
- 2Altrue
- 3Znfalse
- 4Pbfalse
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Answer : 2. "Al "
Q:Read the following questions carefully and answer them.
Cloud is a colloidal dispersion of
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63aaa9205770eb565d50124f- 1Air in a dispersion medium of waterfalse
- 2Fog in a dispersion medium of waterfalse
- 3Mist in a dispersion medium of airfalse
- 4Water drops in a dispersion medium of airtrue
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Answer : 4. "Water drops in a dispersion medium of air"
Q:Read the following questions carefully and answer them.
Curd is sour due to presence of
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63aaa987afa10611461dd172- 1Tartaric acidfalse
- 2Lactic acidtrue
- 3Acetic acidfalse
- 4Oxalic acidfalse
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Answer : 2. " Lactic acid "
Q: Plastic bottles are made of a polymer called PET. The expanded form of PET is
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6389c01134f83f1472741741- 1Polyethylene terephthalatetrue
- 2Polyethyl Terelenefalse
- 3Polyethylene triphosphatefalse
- 4Polyethyl tetrachloridefalse
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Answer : 1. "Polyethylene terephthalate"
Q: What is the bond between two amino acids in a protein called?
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6389b6699ebad6607b7f07fe- 1Ester bondfalse
- 2Glycosidic bondfalse
- 3Peptide bondtrue
- 4Phosphodiester bondfalse
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Answer : 3. "Peptide bond"
Q:Read the following questions carefully and answer them.
Which of the following is the main nitrogenous waste in humans ?
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63aaa8a35770eb565d50089c- 1Ammoniafalse
- 2Ureafalse
- 3Uric Acidtrue
- 4Ammonium Nitratefalse
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Answer : 3. "Uric Acid "
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