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WorksheetsChemistry
Total questions: 23
Worksheet time: 1hrs 2mins
Which conduct electricity?
Hydrogen
Nitrogen
Ammonia
Sulfur
Which is the uses of nitrogen ?
As a cleaning agent
Make ammonia
Freezing food
Make explosive stuff
What is the name of Mg3P2?
Magnesium phosphate
Magnesium phosphide
Magnesium phosphite
Magnesium phosphorus
What is the force between Ionic compound?
Intermolecular force
Van der waal's force
Electrostatic force
Van der wal's force
Which is the physical properties of ionic compound?
Soluble in water
Volatile
Soluble in organic solvent
Conduct electricity in solid state
High melting point and boiling point
Which following is correct about diamond structure?
Made up of carbon
Conduct electricity
Giant covalent
Hexagonal structure
Tetrahedral structure
What is the similarities between diamond structure and graphite structure?
Made up of carbon
Isotopes of carbon
Both can conduct electricity
Very hard
Giant covalent
Which is the physical properties of silica/silicon dioxide /silicon (IV) oxide ?
Low melting point
Soft
Conduct electricity
Transparent
Which following about metallic bonding is correct?
Electrostatic force
Intermolecular force
Giant covalent
Giant lattice structure
Special question by Mr. Chong Xina: To make Lao Gan Ma,we need....
1 teaspoon of sussy vaka
3 tablespoons of sussy garlic
6.9 tablespoons of sussy onion
Pink sauce
A sample of zinc chloride, ZnCl2 contains 3.01x10^24 molecules. Calculate the number of moles of zinc chloride, ZnCl2 found in the sample.
14
7
13
19
5
Find the moles of 32g of SO2
1
2
0.2
0.5
1.2
Calculate the volume of 0.01 mol of NH3 in cm³ at rtp.
0.24
0.97
9.7
24
240
40g of solid copper(II)sulphate,CuSO4 is dissolved in water to produce 20dm³ solution. Calculate the concentration of the solution
0.5
5
4
2
10 mol of solid zinc chloride, ZnCl2 dissolved in water to produce 5 dm³ of solution. Calculate the molarity of solution.
10
5
2
8
What is the volume of 26.4g of CO2 at rtp?
5.5
2
12.2
14.4
How many molecules are there in 672cm³ of H2 at stp?
2
4.561^25
1.561^25
1.806^22
3.455^23
What is the empirical formula of C2H5OH?
CH3O
CH3
C2H6O
C2H6O2
Cat or dog?
Cat
Dog
Calculate the molarity of 500cm³ HCL if 6g of CuO is used for a complete reaction to produce copper (II) chloride solution and water
0.9
3.789
0.3
0.467
What is the colour of Cu(NO3)2 solution?
Black
Brown
Blue
Grey - silvery
What is the colour of CuO?
Black
Blue
Grey - silvery
Brown
Calculate the percentage of oxygen in hydrogen peroxide, H2O2.
45.3
68.1
82.7
94.1
