Q.1 Textbook activity question : 1 Write the molecular formulae of oxides of the following elements by referring to the Mendeleev’s periodic table. Na, Si, Ca, C, Rb, P, Ba, Cl, Sn, Ca Ans: Element Molecular formula Element Molecular formula Na Na2O P P2O5 Si SiO2 Ba BaO Ca CaO Cl Cl2O7 C CO2 Sn […]
Tag: Modern Periodic Table
MCQ on Science Part I Solutions for Class 10 Science Chapter 2 – Periodic Classification Of Elements
1 ) Elements are classified as …………… A ) Metals B ) Non-metals C ) Metalloids D ) All of the above Ans D ) All of the above 2 ) Which is odd among the following? A ) Li B ) Sr C ) K D ) Na Ans B ) Sr 3 ) […]
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