1) which of the following is not a matter? a) Feeling of hot b) Smoke c) humidity d) water 2) The change of liquid into water vapour is a) Vaporisation b) Solidification c) Sublimation d) none of these 3) Rate of diffusion depends upon a) Temperature b) Surface area c) Both a and b d) None 4) SI unit of mass is a) kg b) m c) s d) kelvin 5) Camphor can be purified by a) Distillation b) Filteration c) Sedimentation d) Sublimation 6) Atomic number of Chlorine a) 15 b) 17 c) 7 d) 19 7) Electronic configuration of Carbon is a) 2,6 b) 2,4 c) 2,8,2 d) 2,8 8) Symbol of Nitogen a) Na b) Ne c) N d) Mg 9) Valency of Magnesium a) 4 b) 5 c) 2 d) 3 10) What is the atomicity of NH3 a) 5 b) 2 c) 4 d) 3 11) Identify the picture a) Oxygen b) Nitrogen c) Hydrogen d) Carbon 12) Total number of electrons in Calcium a) 18 b) 20 c) 10 d) 12 13) Formula of Magnesium chloride a) Mgcl b) Mgcl2 c) Mgcl4 d) Mgcl3 14) Charge on Electron is a) Negative b) Positive c) Neutral 15) Canal rays are a) positive b) negative c) no charge d) nil 16) ..........was first to propose a model for the structure of an atom a) J.Chadwick b) E.Rutherford c) Neils Bohr d) J.J Thomson 17) Which of the model of the atom is depicted by the given figure a) Thomson model of an atom b) Rutherford model of an atom c) Bohr's model of an atom d) None of these 18) Iron and sand are separated by a) Chromatography b) Sublimation c) Filteration d) Magnetic Separation 19) Kerosene are water are separated by a) Chromatography b) Filteration c) Separating funnel d) Sublimation 20) Solution which can dissolve more solute a) Saturated solution b) True solution c) Unsaturated solution d) None of these

Class 9th Science test

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？