Classic Classic Quiz Physics and chemistry by MANHAR MANHAR 83 played - 10 yrs ago Very difficult quiz for class 6 QUIZ 7 QUESTIONS hard PhysicsChemistry 1 What is the other name of second law of refraction ? NEWTON s LAWEINSTEIN s LAWSNELL s LAWNOBEL s LAW 2 The amount of heat required to change the state from solid to liquid is called Latent heat of fusionLatent heat of meltingLatent heat of boilingLatent heat of vapourization 3 Who proved that electron was neutral ? RUTHERFORDBOHRDALTONTHOMPSON 4 What is the minimum distance required to hear an echo ? 16 METRE17 METRE18 METRE19 METRE 5 Which law of newton states that mass multiplied by velocity is equal to momentum Newton s first lawNewton s second lawNewton s third lawNewton s fourth law 6 How can permanent hardness of water be removed ? BOILINGFREEZINGBy clark s processBy calgon s process 7 What is the valency of oxygen ? 1234 A mistake in this Quiz ? Contact the author Commentaires
