Practice Test - Chemistry

30 Questions | By Testskiller | Last updated: Mar 21, 2022 | Total Attempts: 51

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Subject - Chemistry Chapter - Non Metals There are 20 multiple choice questions scoring 3 for each. There are 20 true or false questions scoring 2 for each. Overall 40 questions in 45 minutes.

Questions and Answers

1.

Chlorine acts as a bleaching agent only in the presence of
- A.
  
  Dry air
- B.
  
  Moisture
- C.
  
  Sunlight
- D.
  
  Pure oxygen
2.

A gas that cannot be collected over water is
- A.
  
  Nitrogen
- B.
  
  Oxygen
- C.
  
  Sulfur dioxide
- D.
  
  Phosphene
3.

The compound which gives off oxygen on moderate heating is
- A.
  
  Cupric oxide
- B.
  
  Mercuric oxide
- C.
  
  Zinc oxide
- D.
  
  Aluminium oxide
4.

Bromine can be liberated from potassium bromide solution by action of
- A.
  
  Iodine solution
- B.
  
  Chlorine solution
- C.
  
  Sodium chloride
- D.
  
  Potassium iodide
5.

The material used in solar cells contains
- A.
  
  Cesium
- B.
  
  Silicon
- C.
  
  Tin
- D.
  
  Titanium
6.

Electrical conductivity is shown by
- A.
  
  Diamond
- B.
  
  Silica
- C.
  
  Carborundum
- D.
  
  Graphite
7.

Which of the following statements regarding diamond is not correct?
- A.
  
  Diamond is a bad conductor of heat and electricity
- B.
  
  Diamond crystalizes in the body centered cubic lattice
- C.
  
  The C-C bond length of diamond is 154pm
- D.
  
  Diamond is more dense than graphite.
8.

Which of the following statements regarding phosphorus is not true?
- A.
  
  Phosphorus is a element in Group 15
- B.
  
  Phosphorus is obtained by heating the rock phosphate with coke and sand in an electrical furnace around 1800 K
- C.
  
  The phosphorus molecule contains four atoms
- D.
  
  Black phosphorus is the least stable form of the allotropes of phosphorus
9.

Oxygen molecule contains
- A.
  
  No unpaired electrons
- B.
  
  One unpaired electron
- C.
  
  Two unpaired electrons
- D.
  
  Four unpaired electrons
10.

Ozone is not
- A.
  
  A fast oxidizing agent
- B.
  
  A powerful oxidizing agent
- C.
  
  A bent molecule
- D.
  
  A stable allotrope
11.

The gaseous iodine molecules absorb yellow light from the visible region. Its color would be
- A.
  
  Yellow
- B.
  
  Red
- C.
  
  Green
- D.
  
  Violet
12.

Bubbling hydrogen sulfide through nitric acid produces
- A.
  
  Rhombic sulfur
- B.
  
  Monoclinic sulfur
- C.
  
  Amorphus sulfur
- D.
  
  Plastic sulfur
13.

On heating, the volume of ozone will
- A.
  
  Decrease
- B.
  
  Increase
- C.
  
  Remain unchanged
- D.
  
  Become double
14.

The semoconducting form of phosphorus is
- A.
  
  White
- B.
  
  Red
- C.
  
  Black
- D.
  
  Yellow
15.

In white phosphorus, the arrangement of phosphorus atoms is
- A.
  
  Linear
- B.
  
  Square planar
- C.
  
  Tetrahedral
- D.
  
  Octahedral
16.

The highest bond enthalpy is shown by
- A.
  
  Fluorine
- B.
  
  Chlorine
- C.
  
  Bromine
- D.
  
  Iodine
17.

Amongst the halogens, the strongest oxidizing agent is
- A.
  
  Fluorine
- B.
  
  Chlorine
- C.
  
  Bromine
- D.
  
  Iodine
18.

White phosphorus is stored
- A.
  
  In air
- B.
  
  Under water
- C.
  
  Under kerosene
- D.
  
  Under carbon disulfide
19.

Which of the following is not the mineral of sulfur?
- A.
  
  Chloropatite
- B.
  
  Fool's gold
- C.
  
  Sphalerite
- D.
  
  Chalcopyrite
20.

Which statement regarding to white phosphorus is not correct? 1
- A.
  
  It is non poisonous
- B.
  
  It glows in dark
- C.
  
  It has a low ignition temperature
- D.
  
  It is a powerful reducing agent
21.

Diamond is harder than graphite
- A.
  
  True
- B.
  
  False
22.

Diamond has a high value of refractive index
- A.
  
  True
- B.
  
  False
23.

Silicon is a non metal
- A.
  
  True
- B.
  
  False
24.

Heating of ammonium nitrate produces nitric oxide gas
- A.
  
  True
- B.
  
  False
25.

Caustic soda has no action on red phosphorus
- A.
  
  True
- B.
  
  False