Mock Test – Chemistry Combined Part 2

Derivatives of perhydrocyclopentanophenanthrene are called as: (PPSC-2021)?a) Phospholipidsb) Proteinsc) Steroidsd) None of these When all the monosaccharides in a polysaccharide are same type, such type of a polysaccharide is called a…

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Thermodynamics

Heat does not spontaneously flow from a colder body to a hotter one. Which of the following thermodynamics law states this?a) Zeroth law of thermodynamicsb) First law of thermodynamicsc) Second law…

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Environmental Chemistry + GK 5

1- Which of the following is not the consequence of ozone layer depletion?a) Increased ultraviolet raysb) Cyanobacteria are sensitive to UV radiation and would be affected by its increase.c) Malignant melanoma-Another…

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Chemistry Mock Exam B-2 Part 5

Proclamation of Republic first constitution drafted?a) 1956b) 1958c) 1962d) None of these Pakistan Standard Time became effective at mid-night?a) 1951b) 1952c) 1953d) 1954 Who is current federal minister for communication?a) Molana…

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Chemistry Mock Exam B-2 Part 3

Select the correct statement from the following option.?a) Conjugate effect is stronger than (-I) effectb) Conjugate effect is weaker than (-I) effectc) Conjugate effect is same as (-I) effectd) None of…

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Chemistry Mock Exam B-2 Part 2

Which of the following is not the application of gel filtration? (PPSC 2021)?a) Purificationb) Relative molecular mass determinationc) Protein concentrationd) None of these Which solvent is usually used for SEC in…

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Chemistry Mock Exam B-2 Part 1

Which of the following elements is the most electropositive?a) Bb) Cc) Cld) N Which species does not contain an sp3-hybridized atom?a) BH3a) NH4+b) NH3c) none of thesed) BH3 Photochemical smog normally…

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