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WorksheetsCentum Hour_Chemistry X
Total questions: 15
Worksheet time: 11mins
A
B
C
D
298 K, 311 K
298 K, 310 K
273 K, 311 K
273 K, 310 K
Cu
H2O
CuO
H2
A solution turns red litmus blue, its pH is likely to be
4
7
1
10
Which of the following is a chemical change?
Melting of ice
Dissolving salt in water
Rusting of iron
boiling of water into steam
A mixture of sulfur and carbon disulfide is
heterogeneous and shows Tyndall effect
homogeneous and shows Tyndall effect
heterogeneous and does not show Tyndall effect
homogeneous and does not show Tyndall effect
The chemical formula for Aluminium Sulfate is
AlSO4
Al2SO4
Al3SO4
Al2(SO4)3
The molecular mass of CH3OH is
32 u
30 u
28 u
34 u
Rutherford's 'alpha ( α ) particles scattering experiment' resulted in the discovery of
Electron
Proton
Nucleus in the atom
Atomic mass
Identify the Mg+2 ion where n represents number of neutrons and p represents number of protons
Baking soda is
NaHCO3
Na2CO3
CaO
Na2SO4
How many oxygen atoms are present in the following? 4Ca(OH)2
4
6
8
1
Which of the following has highest kinetic energy?
Particles of ice at 0 °C
Particles of water at 0 °C
Particles of water at 100 °C
Particles of steam at 100 °C
What is the solute in the soda water?
Water
Carbon dioxide
Sugar
Oxygen
