Ist year chemistry

Feb 3rd, 2012
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These tests includes tests of basic chemistry which includes mcqs and numerical related to moles avogadro's number etc.These also includes questions related to experimental techniques and atomic structure.

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Pakistan Leadership AcademyCrash Test SeriesSubject: Chemistry Objective Class:1st yearTime: 10 mints Chapter: 1,2,9 Marks:10 Name: __________________________________________________________Section Ai. The mass of one mole of electrons is (A)1.008 mg (B) 0.55 mg(C)0.184 mg (D) 1.673 mgii. Atomic mass of an element expressed in grams is called(A)1 g atom(B)1 g mole of that element(C)1 mole of that element(D)All of themiii. The largest number of molecules are present in (A)3.6 g of H2O (B)4.8 g of C2H5OH(C)2.8 g of CO (D) 5.4 g of N2O5iv. Which one of the following contain the same num

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