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MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements
Try The MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 14 Group IIIA & IVA Elements
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Question # 1
The number of electron that are paired in oxygen molecule are
Question # 2
Which one of the following does not belong to alkaline earth metals
Question # 3
Which is an essential constituent of chlorophyll
Question # 4
______ is used in breathing equipments for mountaineers and in space craft
Question # 5
The chemical formula of gypsum is
Question # 6
Phosphorus pentoxide finds use as
Question # 7
Each of the following is true of white and red phosphours except that they
Question # 8
Which of the following elements is most metallic?
Question # 9
Which of the following is not the reactions of lithium
Question # 10
Which of the following element is most reactive
Question # 11
The maximum number of electrons in the outermost shall of s-black elements is
Question # 12
The chemical formula of magnesite is
Question # 13
Plaster of pares is obtained by heating
Question # 14
Which colour is imparted by sodium
Question # 15
Which metal is used in the thermit process because of its activity?
Question # 16
Which one of the following properties is not correct for ozone?
Question # 17
Which of the following is formed by the action of water on sodium peroxide?
Question # 18
Which of the following fluorides does not exists?
Question # 19
Which of the following compound is industrially prepared by the electrolysis of solution of NaCl
Question # 20
The element caesium bears resemblance with
Question # 21
The ore CaSO42H2O has the general name
Question # 22
Sulphuric acid reacts with PCl5to give
Question # 23
Ozone is not
Question # 24
Where lime is not used
Question # 25
The number of unpaired electrons in the p-subshell of oxygen atom
Question # 26
Tincal is a mineral of:
Question # 27
CaC2on hydrolysis form
Question # 28
Which of the following are electropositive in nature
Question # 29
Dipole moment of CO molecule is:
Question # 30
When sulphur is boiled with Na2SO3solution, the compound formed is
Top Scorers Of ECAT Chemistry Chapter 14 Group IIIA & IVA Elements MCQ`s Test
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N Nasreen Sardar 09 - Jun - 2023 05 Min 45 Sec 115/120 -
T Tasawar Hussain 22 - Feb - 2024 04 Min 52 Sec 110/120 -
T TETO Teto 13 - Mar - 2023 01 Min 57 Sec 105/120 -
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R Rana Muzamil 11 - Mar - 2024 05 Min 18 Sec 90/120 -
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Z Zoya Zoya 27 - May - 2024 11 Min 34 Sec 60/120
ECAT Chemistry Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Silicon atom is hybridized: |
A. sp
B. sp2
C. sp3
D. dsp2
|
| 2 | The oxide of beryllium is |
A. Acidic
B. Amphoteric
C. Superoxide
D. Basic
|
| 3 | The chemical formula of Trona is |
A. KCl . MgCl2. 6H2O
B. Na2CO3. 2NaHCO3. 2H2O
C. Na2CO3. H2O
D. KCl
|
| 4 | Which one of the following pentafluorides cannot be formed? |
A. PF5
B. AsF5
C. SbF5
D. BiF5
|
| 5 | The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is |
A. Hypophosphorus acid
B. Orthophosphorus acid
C. Pyrophosphorus acid
D. Metaphosphorus acid
|
| 6 | Which is litharge or massicot? |
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2
|
| 7 | Each of the following is true of white and red phosphours except that they |
A. Are both soluble in CS2
B. Can be oxidized by heating in air
C. Consist of the same kind of atoms
D. Can be converted into one another
|
| 8 | Identify the incorrect statement with respect to ozone |
A. Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen
B. Ozone is more reactive than diaoxygen
C. Ozone is diamagnetic whereas dioxygen is paramagnetic
D. Ozone protects the earth's inhabitants by absorbing gamma-radiations
|
| 9 | Which of the following salt is used as purgative |
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
|
| 10 | Which of the following oxides is peroxide? |
A. Na2O2
B. MnO2
C. BaO
D. SO2
|
Test Questions
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