Chemistry Quiz for General Chemical Sciences [+60 Questions and Answers]

 Chemistry Quiz set-1

Chemistry Quiz are useful for school students for their examination.Check the answer to each multiple-choice questions of chemistry quiz, and click on the "Send Form" button to submit the information. This chemistry quiz questions are useful for science fair quiz also.

1.Which of the following substance is metal:
N
O
S
Li

2. Dry ice is:
Solid CO₂
Solid NH₃
Solid N₂
Solid O₂

3. Covalent Compounds are more soluble in :
Water
Organic solvent
Both Water and Organic Solvent
None of the above

4. What is heavy water:
HDO
H₂O
D₂O
D₂O₂

5. Li shows a diagonal relationship with :
Na
K
Cd
Mg

6. Biogas Mainly contains:
Methane
Butane
Propane
Acetylene

7. The atomic mass number of tritium:
1
2
3
6

8. The LCAO approximation method:
Thermodynamics
Catalysis
Nuclear Chemistry
The Molecular Orbital Theory

9. The Zero point energy :
kT
1/2kT
1/2hv
hv

10. The smallest ionic radius among the following ions:
K⁺
Ca²⁺
Zn²⁺
Fe³⁺

11. Which has the highest electron affinity:
F
I
Cl
Br

12. Which of the following compound has the highest lattice energy:
CsF
NaF
RbF
KF

13. The most basic ionic species from the following:
F⁻
NH₂⁻
CH₃⁻
OH⁻

14. Which of the following compound is most acidic in water:
HF
CH₄
NH₃
None of the above

15. From the following, An example of a colligative property is:
Vapour pressure
Osmotic Pressure
Boiling Point
Freezing Point

16. The dark purple color of KMnO₄ is due to:
d-d transition
Ligand field transition
Charge transfer transition
none of the above

17. Which of the following properties of alkaline earth metal increases with increase in atomic number?:
The solubility of the sulfates
Electron negativity
Electron affinity
Ionization enthalpy

18. The folloCheck the answer to each multiple-coice question, and click on the "Send Form" button to submit the information.
wing set of elements mostly occurs in the form of sulfide ores:
Zn, Cu, Na
Cu, Ag, Au
Zn, Cu, Pb
None of the above

19. The units of Plank's constant are:
J/s
J
Js
no units

20. Among these, The weakest bond is:
Covalent
Ionic bond
Metallic
H-bond

21. How many electrons can have quantum numbers I=3,n=4 & m=0:
zero
14
10
2

22. The element which shows the largest range in oxidation state is:
Mn
Fe
V
Cr


23. Which of the following is an extensive property:
Density
V
P
T

24. Which of the following is not a bidentate ligand:
acetylacetonate
oxalate ion
both acetylacetonate and oxalate ion
Pyridyl

25. The number of unpaired electrons present in the iron atom is:
8
4
5
6

26. The electron deficient species out of the following is:
:CH₂
:CH₂
both:CCl₂ and :CH₂
None of these

27. The increase in the intensity of the UV absorption signal is known as:
Hypochromic shift
Hyperchromic shift
Hypsochromic shift
Bathochromic shift

28. Accuracy means:
Precision
mean deviation
correct observation
reproducibility of a result

29. If there were no empty space in an atom & formed of nuclei only, then how many nuclei could be adjusted in the atom:
10,000 or more
1000
100
1

30. Which of the following is not the characteristic of hard bases:
The donor atoms in them posses low polarizability
They bind the proton strongly
They bind the proton weakly
They are not easily oxidized

Chemistry Quiz set-2

Chemistry Quiz are useful for school students for their examination.Check the answer to each multiple-choice questions of chemistry quiz, and click on the "Send Form" button to submit the information. This chemistry quiz questions are useful for science fair quiz also.


1. What is the degeneracy of 3d orbitals:
5
3
11
1

2. On electrolysis of aqueous solution of ICI, the I₂ is obtained at:
Cathode
Anode
Both th electrodes
None of these

3. 10⁻⁸ M HCL solution has pH around:
7.2
7.5
6.95
8

4. Joule Thomson expansion is:
Isoenthalpic
Isobaric
Isothermal
Isochoric

5. Highest filled energy orbitals for element with atomic number No. 30 is (in ground state)
4s
3d
4p
4d

6. The IUPAC name of the compound with formula CH2=CH−C≡CH is:
3-Buten-1-yne
1-Butyn-3-ene
But-1-en-3-yne
But-1-yne-3-ene

7. The most stable carbocation out of the following is:
triphenylmethyl cation
benzyl cation
3⁰-carbocation
allyl cation

8. Which of the following radiation has the longest wavelength:
Radiowave
Microwave
UV
IR

9. What will be the significant number in 0.001047:
7
3
6
4

10. Au⁺, Au²⁺ , and Au³⁺ have:
different equivalent weights
different atomic numbers
different protons
different atomic weights

11. For the titration between a weak acid and NaOH, an appropriate indicator should have a pH value of:
12
6
9
4

12. Which is the correct relationship?
Joule = Volt ₓ ampere ₓ second
Joule = Volt ₓ ampere / Siemens
Joule = Volt ₓ ampere ₓ Siemens
Joule = Volt ₓ siemens

13. In Joule Thomson expansion:
△S=0
△V=0
△T=0
△H=0

14. The element having lowest m.pt is:
Os
Mn
Fe
Cr

15. The correct name for 3-methyl-2-isoprppylhexane is:
2-Ehtyl-3-methylheptane
2,3-Dimethylloctane
2,4-Dimethylloctane
2,3,4-Trimethylheptane

16. Cyclopentadienyl carbonation is very stable because of:
aromatic character
resonance
both aromatic character and resonance
its non-planar structure

17. The O-H stretching appears at the .....cm⁻¹ in IR spectrum:
1700-1800
3000-2800
3300-3200
3600-2800

18. Variance is defined as:
square root of standard deviation
square of the standard deviation
another name of standard deviation
none of the above

19. Bohr model of an atom is meant for:
He
H
Li²⁺
Both H and Li²⁺

20. In dry cell, Mn changes its oxidation state from:
+3 to +4
+4 to +2
+2 to +4
+4 to +3

21. Which of the following spontaneous process leads to a decrease in entropy?
burning of fuel
degradation of organic malts
photosynthesis in plants
Respiration process

22. Lanthanides are separated by:
GLC
Arthur Forest method
Froth Flotation
Ion Exchange method

23. Which of the alkali metals and alkaline earth metals does not produce H₂ gas from cold water?
Mg
Li
both Li and Mg
Ba

24. On hydroboration oxidation propene forms:
glycerol
glycol
1-propanol
isopropyl alcohol
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25. IR spectra are usually recorded in the terms of:
wavelength
wavenumbers
absorbance
energy

26. A blank solution means:
contains all the reagents but no sample
any solution of unknown concentration
no solution in the container
contains solvent and all reagents with sample

27. Which vibrational mode of CO₂ is infrared active:
symmetric stretch
Asymmetric stretch
both of these
none of these

28. What is the product of Perkin reaction between benzldehyde and actic anhydrade?
cinnamic acid
benzyl alcohol
benzoin
ethyl benzene


29. Which of the following is least soluble in water?
LiCl
KCl
CsCl
NaCl

30. Which of the following would give ferric ions in aqueous medium?
Ferric-alum
Potassium Ferricyanide
Mohr's salt
Magnetic oxide of ion

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