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WorksheetsChemistry Assessment
Total questions: 18
Worksheet time: 15mins
Which polymer is used to manufacture electric switches, computer disks etc.?
Teflon
Polyethylene
Bakelite
Poly propelene
Which of the following is NOT organic compound
CH3COOH
NaOH
C2H5OH
C3H8
The total number bonds carbon can have in organic compounds
1
2
3
4
How many carbon atoms are present in octane
3
5
6
8
alkane
Diene
alkyne
aromatic
The functional group present in alcohols is....
-CO-
-COOH
-OH
-CO-NH2
Which of the following molecule is carboxylic acid
CH3CHO
CH3CH2OH
CH3OCH3
CH3COOH
Which of the following is example of ester
Adding an appropriate amount of suitable impurity to increase conductivity of semiconductors is known as …………………..
Morphing
Doping
Cleaning
Rubbing
Which metal in the following ions has the highest oxidation state?
Cr2O7 2−
MnO4-
Sc3+
Sn4+
In electro chemical cell reduction reaction occurs at.....
Anode
Cathode
Electrolyte
Salt bridge
The correct statement about following chemical equation are (select all correct answers)
Zn + FeCl2 → ZnCl2 + Fe
Zn is oxidized
Fe is oxidized
Both Zn and Fe are oxidized
Both Zn and Fe are reduced
Which of the following is NOT a unit used to express concentration?
PPM
Molarity
Normality
Density
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
strongly acidic
slightly acidic
strongly basic
slightly basic
Metal ions
salts
hydrogen ions
hydroxide ions
Explain what happens when a strong acid and a strong base are poured into the same container.
they form separate layers
they mix physically but not chemically
solution become acidic
they react to form a salt and water
