Q.1. Textbook activity question 1] Write the molecular formulae of oxides of the following elements by referring to the Mendeleev’s periodic Na, Si, Ca, C, Rb, P, Ba, Cl, Sn, Ca Element Molecular formula Element Molecular formula Na Na2O P P2O5 Si SiO2 Ba BaO Ca CaO Cl Cl2O7 C CO2 Sn SnO2 Rb […]
10th science Part -I
10th science Part -I from topic 1to 10
MCQ on 10 science part -1 Topic-2 periodic Classification of elements MCQ
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 […]
MCQ solutions for Science and Technology Part 1 chapter 5 – Heat
1) The heat energy absorbed at constant temperature by unit mass of a solid to convert into liquid is called…………… . A ) Specific latent heat of fusion B ) Specific latent heat of vaporization Ans A ) Specific latent heat of fusion 2 ) Different substances have different melting points but same boiling points. […]
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 ) […]
Class 10 Science &Tech. Part 1 Chapter 1 Gravitation
Points Of Topic 1] Gravitation 2]Circular motion and centripetal force
3] Kepler’s laws 4] Newton’s universal law of gravitation
5] Acceleration due to the gravitational force of the Earth
6] Free fall
7] Escape velocity