FSC Physics MCQs Part 2 Physics Part 1 HSSC Pre Medical Pre Engineering text Book Questions first year and second-year Physics mcqs
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When one hydrogen atom of alkane is removed then it is called
A. alkene B. alkyl
C. aldehyde D. saturated hydrocarbon
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[explanation]B[/explanation]
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Sabatier Senderns reaction involve _________ in presence of Ni
A. Aalkene & H2 B. alkene & O2
C. alkene & N2 D. alkyne & Cl2
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[explanation]A[/explanation]
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Dehalogenation of ethyl tetrahalide will give
A. ethene B. ethyne
C. ethyl halide D. all of the above are possible
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[explanation]B[/explanation]
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R-Mg-Br is called
A. Grignard reagent B. Metallic alkyl halide
C. Both a & b D. Alkyl
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[explanation]C[/explanation]
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Introduction of nitro group in a molecule is called
A. nitration B. halogenation
C. sulphonation D. amination
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[explanation]A[/explanation]
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