CBSE Class 10 Science HOTs Periodic Classification of Elements
MCQ Questions for NCERT Class 10 Science Periodic Classification of Elements Question. Pick out the chemically most reactive elements from the given triads. Li, Na, K F, Cl, Br (a) Li and F (b) Li and Br (c) K and F (d) K and Br Answer : C Question. Identify the…
CBSE Class 10 Science HOTs Metals and Non Metals
METALS & NON-METALS Question : The metallic lustre exhibited by sodium is explained by : (B) oscillation of mobile (A) diffusion of sodium ions valence electrons (C) existence of free protons (D) existence of body centered cubic lattice Answer : B Question : Which of the…
CBSE Class 10 Science HOTs Chemical Reactions and Equations
Question. Zinc reacts with silver nitrate to form which compounds? (a) Zn (NO3)2 + Ag (b) ZnNO3 + Ag (c) AgNO3 + Zn (NO3)2 (d) Ag + Zn (NO3)3 Answer : A Question. Which of the following statements about the given reaction are correct? 3Fe(s) + 4H2O(g) → Fe3O4(g) + 4H2(g) (i)…