chemistry test by Pro geniusstudets

Chemistry – Test 2

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Posted:12 Jul, 2025

🔬 Forces Chemistry Quiz – Test 2

Welcome to the second quiz in our Chemistry series, crafted for candidates preparing for Pakistan Army, Navy, and Air Force entry tests. This test is ideal for assessing your grasp of essential topics like chemical bonding, atomic structure, reactions, periodic trends, and acids-bases.

📘 Why Take This Quiz?
This quiz helps identify weak spots, strengthens your understanding of tricky concepts, and enhances speed and accuracy for real exam conditions. Each MCQ reflects the type of questions often found in initial military selection tests.

📊 Quiz Overview:
✅ Total Questions: 50
⏱️ Time Limit: 18 minutes (approx. 22 seconds per question)
🎯 Passing Criteria: 50%

👉 Take the challenge now and level up your chemistry prep!

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Chemistry Test 2

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1 / 50

Most abundant element in earth's crust is:

2 / 50

All of the following substances are crystalline except?

3 / 50

The list which contains only elements is?

4 / 50

Hydroxide ion in water is.....?

5 / 50

Valency of carbon is:

6 / 50

Neutron was discovered by Chadwick in?

7 / 50

__________is study about energy of a chemical system?

8 / 50

Catalytic activity of Ketones gives......?

9 / 50

Acetylene is oxidized by KMnO, to form?

10 / 50

Find the temperature at which the rate of effusion of N₂ is 1.625 times to that of SO₂ at 500°C.

11 / 50

Catalytic activity of Aldehydes gives......?

12 / 50

Carbon atoms of diamond are?

13 / 50

The molar volume of CO2 is maximum at?

14 / 50

Structural formula of cycloalkane is.....?

15 / 50

The splitting of a spectral lines into two or more components of slightly
different frequency when the light source is place in a magnetic field is known
as.....?

16 / 50

Which of the following enzymes converts maltose to glucose?

17 / 50

Brine is used for industrial production of ?

18 / 50

In CO2 the OXYGEN=16g/mol the no. of moles of CARBON =.........

19 / 50

The amount of heat required to vaporize one mole of a liquid at its boiling point is called?

20 / 50

Depletion of the ozone layer is caused due to?

21 / 50

The ratio of the water molecule in plaster of Paris and gypsum is?

22 / 50

The velocity of photon is?

23 / 50

Which of the compounds can exist together?

24 / 50

Maximum number of electron that accumudate in a sheel......?

25 / 50

The oxidation state of nickel in [Ni(CO)₄] is:

26 / 50

The element of the group IIA are called:

27 / 50

H2SO4 is a/an:

28 / 50

In Dry cell, Cathode is made up of _______ ?

29 / 50

The correct order of electronegativity is?

30 / 50

When milk of magnesia reacts with acetic acid it produces?

31 / 50

Iodine has?

32 / 50

Photochemical smog normally does not contain?

33 / 50

Hybridization of OXYGEN in H2O is.....?

34 / 50

Which of the species is not paramagnetic?

35 / 50

At equilibrium,the amount of product and reactant becomes........?

36 / 50

When base reacts with the non-metal oxide?

37 / 50

Atomic radius can be determined by?

38 / 50

Carboxylic acids are also called........?

39 / 50

Electronic configuration of alkaline earth element is ?

40 / 50

D-block elements are also called as ?

41 / 50

The ionization energy of Hydrogen is?

42 / 50

Oxidation number of Sodium is ______?

43 / 50

When ethyne is passed through a red hot iron tube.

44 / 50

1 calorie = ______ joules?

45 / 50

Diamond is not a good conductor of electricity because there is......

46 / 50

The energy obtained from electric cells and batteries as a result of a chemical reaction is called?

47 / 50

If absolute temperature of a gas is doubled and the pressure is reduced to one half the volume of gas will?

48 / 50

Find the fraction of the total pressure exerted by hydrogen if it is mixed with ethane in an empty container at 25°C.

49 / 50

Baking powder is?

50 / 50

Which block of elements are known as transition elements?

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