SMART INSTITUTE NMDCAT CHEMISTRY-1 TS

A vivid and colorful illustration of chemistry concepts, featuring neon lights, laboratory glassware, and chemical formulas glowing in a dark background.

Neon Chemistry Challenge

Test your knowledge of chemistry concepts with our Neon Chemistry Challenge! This quiz is designed for aspiring chemists and students preparing for examinations like the NMDCAT.

With 30 carefully crafted questions covering a wide range of chemistry topics, you will:

Enhance your understanding of fundamental principles
Prepare for academic assessments
Challenge yourself with engaging questions

35 Questions9 MinutesCreated by ExploringAtom27

1-How many electrons have to be removed to ionize 1.0 x 10^-6 moles of Ne atoms to Ne+ ions in a neon advertising tube:

(6.02 x 10^23) / (1.0 x 10^-6)

(1.0 x 10^-6 x 6.02 x 10^23) / (20.2)

1.0 x 10^-6 x 6.02 x 10^23

(1.0 x 10^-6 x 6.02 x 10^23) / (9.65 x 10^-1)

2-Which of the following contains 1 mole of the stated particles?

Chlorine molecules in 35.5 g of chlorine gas

Electrons in 1 g of hydrogen gas

Hydrogen ions in 1 dm^3 of 1 mol dm^3 aqueous sulphuric acid

Oxygen atoms in 22.4 dm^3 of oxygen gas at STP

3-The mass of one molecule of O2 is:

(6.02 x 10^23 )/ 32

32 g

0.32 g

32 / (6.02 x 10^23)

4-Number of molecules of sugar in 1 dm^3 of 1 M sugar solution is :

6.02 x 10^23

3.42 x 6.02 x 10^22

6.02 x 10^20

1.80 x 10^23

5-Artificially occuring isotopes of silver are:

6-Valence electron of K has ........... Value for spin quantum number with ........ spin

+1/2 , clockwise

+1/2, anticlockwise

-1/2, clockwise

-1/2, anticlockwise

7-Which of the following quantum number is not mathematically obtained from Shrodinger wave equation:

Principle quantum number

Magnetic quantum number

Azimuthal quantum number

Spin quantum number

8-Correct set of quantum numbers for 5f are:

N=5, l=3, m=+1

N=4, l=3, m=0

N=5, l=2, m=+2

N=5, l=4, m=+1

9-The rule(s) for filling electrons in subshells of atoms is/are:

Aufbau's principle

Hund's rule

Pauli exclusion principle

All of these

10-The place between two orbitals where probability for finding the electron is zero known as:

Anti-orbital

Atomic hole

Nodal plane

None of these

11-Gases deviate from ideal behavior at high pressure . Which of the following is correct for non-ideality?

At high pressure, the gas molecules move in one direction only

At high pressure, the collision between the gas molecules are increased manifold

At high pressure, the volume of the gas becomes insignificant

At high pressure,the inter-molecular attractions become significant

12-Evaporating water depends upon the following:

Surface area and intermolecular forces

Humidity in air

Speed of the air above the liquid surface

All of these

13-Volume of a gas at STP is is 10 dm^3, at what temperature its volume will become 30 dm^3, keeping pressure constant:

3 degree celsius

819 K

819 degree celsius

3 K

14-Absolute Zero is:

-273 K

-459.4 F

0 degree celsius

-546 K

15-In which of the following of the pairs, Debye forces exist:

Water and ethanol

Methane and ethane

Argon and water

Water and Na+

16-A pressure cooker reduces cooking time because:

Large flame is used

Heat is uniformly distributed

Boiling point of water rises

Vapour pressure of liquid decreases

17-Maximum lattice energy is shown by:

LiCl

KCl

NaCl

RbCl

18-C-C bond length in diamond crystal are

1.54 pm

154 pm

109.5 pm

1540 pm

19-The number of chloride ions per unit cell of NaCl are

20-Which of the liquid has lowest vapour pressure:

Br2

H2O

CH3OH

C2H5OH

21-Which of the following elements reacts more vigorously with water:

22-The electron affinity of Beryllium is similar to:

23-Identify the least stable ion amongst the following

Li-

Be-

B-

C-

24-Melting points of group IIA elements are considerably higher than those of group IA elements because

Size of IIA is greater than IA

I.E of IIA is less than IA

I.E of IIA is higher than IA

IIA provide more binding electron

25-Which one of the following has lowest melting point

26-Beryllium and Barium don't form oxide with oxygen:

Normal oxide

Acidic oxide

Basic oxide

Amphoteric oxide

27-Which of the following doesn't react with water even at red hot temperature:

28-Which of the following doesn't react quickly with water at room temperature

29-The reactivity of oxides of alkaline earth metals ...........down to the group.

Increase

Decrease

Unpredictable

Remains constant

30-The first transition series ends on the element

31-The location of transition elements is in between:

Lanthanides and actinides

Chalcogens and halogens

S and p block elements

D and f block elements

32-Which pair of elements has abnormal electronic configuration:

Ti,V

Cr, Mn

Cr, Cu

Ni, Co

33-Which of the following pairs show resemblance in their valence shell electronic configuration:

Sc, Y, La

Zn, V

Mn, Mo

Pt, Au

34-Group VIB of transition elements contains

Zn, Cd, Hg

Cr, Mo, W

Fe, Ru, Os

Mn, Te, Re

35-The general electronic configuration of 3d series of transition elements is:

Ar (core)(n-1)d^1-10 ns^1-2

Ar (core)(n-1)d^1-2 ns^1-2

Ar (core)(n-1)d^1-10 ns^2

Ar (core)(n-2)d^1-2 ns^12

SMART INSTITUTE NMDCAT CHEMISTRY-1 TS

Neon Chemistry Challenge

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