,
, 5) Which of the following is a ‘substance’ according to the definition given in your textbook?
A) Air
B) Tap water
C) Sea water
D) Water
E) Toothpaste
ANS: D
6) Which of the following cannot be separated into simpler substances by chemical means?
A) Element
B) Emulsion
C) Compound
D) Homogeneous mixture
E) Heterogeneous mixture
ANS: A
7) If a liquid contains 60% sugar and 40% water throughout its composition then what is it
called?
A) Solute
B) Compound
C) Homogeneous mixture
D) Heterogeneous mixture
E) Solvent
ANS: C
8) Which of the following does not have a uniform composition throughout?
A) Element
B) Compound
C) Homogeneous mixture
D) Heterogeneous mixture
E) Solvent
ANS: D
9) Which of the following is not an SI base unit?
A) Meter
B) Ampere
C) Second
D) Gram
E) Kelvin
ANS: D
PlusBay.Plus
Downloaded by: faouzimouad | Want to earn $1.236
Distribution of this document is illegal extra per year?