AP POLYCET 2022 Chemistry Grand Test
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Question 1 of 30
1. Question
Indicators are used to detect the nature of the solution for
A) Acidity
B) Basicity
C) Both A and B
D) None of theseCorrect
Incorrect
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Question 2 of 30
2. Question
Bases tend to taste …………….. and feel …………
A) sour, pleasant to touch
B) bitter, slippery to touch
C) sour, slippery to touch
D) None of theseCorrect
Incorrect
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Question 3 of 30
3. Question
Acids turn …………… litmus to ………………..litmus
A) red, red
B) blue, red
C) red, blue
D) blue, blueCorrect
Incorrect
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Question 4 of 30
4. Question
Natural indicators are prepared from…..
i) plants
ii) petrochemicals
iii) living organisms
iv) minerals
A) only i
B) both i and ii
C) both i and iii
D) both ii and ivCorrect
Incorrect
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Question 5 of 30
5. Question
Synthetic indicator among these
A) Methyl red
B) Phenolphthalein
C) Methyl orange
D) All of theseCorrect
Incorrect
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Question 6 of 30
6. Question
Match the following.
a) hydrochloric acid — i) H2SO4
b) sulphuric acid — ii) CH3COOH
c) nitric acid — iii) HCl
d) acetic acid — iv) HNO3
A) a → i, b→ii, c →iii, d → iv
B) a → iii, b →i, c →iv, d → ii
C) a →i, b →iii, c →iv, d → ii
D) a → i, b → iv, c →iii, d → iiCorrect
Incorrect
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Question 7 of 30
7. Question
Match the following.
a) Sodium hydroxide — i) Ca(OH)2
b) Calcium hydroxide — ii) NH4OH
c) Magnesium hydroxide — iii) Mg(OH)2
d) Ammonium hydroxide — iv) NaOH
A) a → i, b → ii, c → iii, d → iv
B) a → i,b → iii,c → ii,d → iv
C) a → iv, b → i, c →iii, d → ii
D) a → iv,b → iii,c → ii,d → iCorrect
Incorrect
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Question 8 of 30
8. Question
The gas released in this experiment is.,
A) oxygen
B) hydrogen
C) chlorine
D) carbon dioxideCorrect
Incorrect
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Question 9 of 30
9. Question
2NaOH + Zn → ………………… + ………………………
A) NaCZ, H2
B) ZnO2, NaH2
C) Na2ZnO2, H2
D) Na2O, H2OCorrect
Incorrect
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Question 10 of 30
10. Question
More reactive metals react with acids and liberate …………….. gas.
A) O2
B) H2
C) Cl2
D) C02Correct
Incorrect
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Question 11 of 30
11. Question
Electromagnetic wave travels with a speed of …………….
A) 3 x 107 m/s
B) 3 x 106 m/s
C) 3 x 108 m/s
D) 3 x 109 m/sCorrect
Incorrect
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Question 12 of 30
12. Question
The relation between frequency and wavelength of electromagnetic wave
A) λ ∝ v
B) λ = v
C) λ ∝ 1/v
D) None of theseCorrect
Incorrect
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Question 13 of 30
13. Question
Red has …………………. wavelength and …………………. frequency.
A) maximum, maximum
B) minimum, maximum
C) maximum, minimum
D) minimum, minimumCorrect
Incorrect
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Question 14 of 30
14. Question
Quantum theory was proposed by……………….
A) Einstein
B) Maxwell
C) Max Planck
D) NewtonCorrect
Incorrect
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Question 15 of 30
15. Question
When an iron rod is heated first it turns to
A) violet
B) red
C) green
D) orangeCorrect
Incorrect
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Question 16 of 30
16. Question
In this figure magnetic field and electric field are………. each other.
A) parallel to
B) perpendicular to
C) intersect
D) None of theseCorrect
Incorrect
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Question 17 of 30
17. Question
An emission spectrum consists of, bright spectral lines on a dark background. Which one of the following does not correspond to the bright j spectral lines?
A) Frequency of emitted radiation
B) Wavelength of the emitted radiation
C) Energy of emitted radiation
D) Velocity of lightCorrect
Incorrect
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Question 18 of 30
18. Question
Match the following:
a) n = 1 — i) L
b) n = 2 — ii) N
c) n = 3 — iii) K
d) n = 4 — iv) M
A) a → i, b → ii, c → iii, d → iv
B) a → iii, b→ i, c → iv, d → ii
C) a → iv, b → iii, c → ii, d→i
D) a → ii, b→ i, c → iii, d → ivCorrect
Incorrect
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Question 19 of 30
19. Question
Bohr’s model explains the line spectra of ………
A) H+ ion
B) Hatom
C) The atom
D) Li+ ionCorrect
Incorrect
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Question 20 of 30
20. Question
Match the following:
a) s – orbital — i) dumbell
b) p – orbital — ii) spherical
c) d – orbital — iii) double dumbell
A) a→i, b→ii, c→iii
B) a→iii, b→ii, c→h
C) a→ii, b→i, c→iii
D) a→ii, b→iii, c→iCorrect
Incorrect
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Question 21 of 30
21. Question
……………. defined an element as any substance that cannot be decomposed into further simple substance by physical or chemical change.
A) Charles
B) Robert Boyle
C) Avagadro
D) Madam CurieCorrect
Incorrect
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Question 22 of 30
22. Question
According to this, every 8th element has similar properties starting from a, given element
A) Dobereiner triad
B) Newlands’ law
C) Mendeleev’s periodic table
D) Modern periodic tableCorrect
Incorrect
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Question 23 of 30
23. Question
Dobereiner triad failed for …………………..
i) low mass
ii) equal mass
iv) neutral massA) Only i
B) both i and iii
C) both i and iv
D) allCorrect
Incorrect
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Question 24 of 30
24. Question
Atomic weight = ……………….. x equivalent weight
A) atomic number
B) combining capacity
C) valency
D) both B and CCorrect
Incorrect
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Question 25 of 30
25. Question
Mendeleev corrected the atomic weights of
i) Beryllium
ii) Indium
iii) Gold
A) only i
B) only ii
C) both i and ii
D) all of theseCorrect
Incorrect
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Question 26 of 30
26. Question
The predicted properties of elements Eka boron, Eka aluminium, and Eka silicon were close to the observed properties of the following elements respectively.
A) scandium, gallium, germanium
B) gallium, germanium, scandium
C) gallium, scandium, germanium
D) germanium, gallium, scandiumCorrect
Incorrect
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Question 27 of 30
27. Question
The set of elements that is not Dobereiner triad from the following
A) Ca, Sr, Ba
B) Cl ,Br, I
C) Mn, Cr, Fe
D) S, Si, TeCorrect
Incorrect
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Question 28 of 30
28. Question
A Dobereiner triad in the following is
A) Cl, Br, I
B) H, He, Li
C) H, Na, Cl
D) C,N, OCorrect
Incorrect
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Question 29 of 30
29. Question
……………….. found that each element emits a characteristic pattern of X ^ rays when subjected to bombardment by high-energy electrons.
A) Bohr
B) Sommerfeld
C) Mendeleeff
D) MosleyCorrect
Incorrect
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Question 30 of 30
30. Question
The number of periods and groups in the modern periodic table ………………..
A) 7, 8
B) 7,18
C) 6,7
D) 5,6Correct
Incorrect