Category: Chemistry
1. Antacids are – (a) Base (b) Acid (c) Salt (d) Buffer (e) None of these [Chhattisgarh P.C.S. (Pre) 2016] […]...
1. Which gas is known as ‘noble gas’? (a) Hydrogen (b) Oxygen (c) Helium (d) Carbon dioxide [M.P. P.C.S. (Pre) […]...
1. An element X has four electrons in its outermost orbit. What will be the formula of its compounds with […]...
1. Which one of the following elements forms the maximum number of compounds? (a) Hydrogen (b) Carbon (c) Nitrogen (d) […]...
1. Out of the following which is not an alloy? (a) Steel (b) Brass (c) Bronze (d) Copper [M.P.P.C.S. (Pre) […]...
1. Which of the following is the electron configuration of a metallic element? (a) 2, 8 (b) 2, 8, 7 […]...
1. UNESCO inaugurated the celebration of 2019 as the International Year of the Periodic Table of Chemical Elements to celebrate […]...
हिंदी में पढ़ें Biology Biology: Branches & Terminologies Evolution of Life on Earth Taxonomy: Classification of Organism Cytology: Study of […]...
1. An example of physical change – (a) Blackening of silverware (b) Burning of Candle (c) Making of curd from […]...
1. Who is regarded as the Father of Modern Chemistry? (a) Rutherford (b) Einstein (c) Lavoisier (d) C.V. Raman (e) […]...