CBSE Class 8 Science Synthetic Fibre and Plastics MCQs

Question. Polyester is made of repeating units of chemical called as - (A) Ester (B) Cotton (C) Ether (D) None of these   Answer : A   Question. Petroleum is the main source of - (A) Silk (B) Plastic (C) Cotton (D) None of these   Answer : B…

MCQs for Class 9 Science with Solutions PDF

CBSE Class 9 Science Chemistry MCQs

Question. Name the solute in common salt solution : a) H2O b) NH4Cl  c) NaOH d) NaCl Question. Pick out a colloid from the following : Question. Which of the following is property of true solution ? a) Homogeneous b) Heterogeneous  c) Translucent d) None of…