In the tincture of iodine, find the solute and solvent?
Anonymous Quiz
24%
alcohol is the solute and iodine is the solvent
50%
iodine is the solute and alcohol is the solvent
15%
any component can be considered as solute or solvent
11%
tincture of iodine is not a solution
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Which of the following is not a homogeneous mixture?
Anonymous Quiz
26%
Air
32%
Tincture of iodine
18%
Sugar solution
23%
milk
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Which of the following correctly represents 360g of water?
(i) 2 moles of water (ii) 20 moles of water (iii) 6.022 × 1023 molecules of water (iv) 1.2044 × 1025 molecules of water
(i) 2 moles of water (ii) 20 moles of water (iii) 6.022 × 1023 molecules of water (iv) 1.2044 × 1025 molecules of water
Anonymous Quiz
16%
(i)
33%
(i) and (iv)
37%
(ii) and (iii)
14%
(ii) and (iv)
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Which of the following statements is not true about an atom?
Anonymous Quiz
36%
Atoms are not able to exist independently.
21%
Atoms are the basic units from which molecules and ions are formed.
27%
Atoms are always neutral in nature.
17%
Atoms aggregate in large numbers to form the matter that we can see, feel or touch.
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1 u or 1 amu means
Anonymous Quiz
59%
1/12th mass of C-12 atoms
21%
Mass of C-12 atom
10%
Mass of O-16 atom
9%
Mass of Hydrogen molecule
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Which of the following contains maximum number of molecules?
Anonymous Quiz
44%
19 CO2
19%
1 g N2
18%
1 g H2
19%
1 g CH4
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A sample of NH3 molecule irrespective of source contains 82.35% Nitrogen and 17.65% of Hydrogen by mass. This data supports:
Anonymous Quiz
39%
Law of Conservation of Mass
26%
Las of Multiple Proportions
26%
Law of Definite Proportions
9%
Avogadro’s Law
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An element X is divalent and another element Y is tetravalent. The compound formed by these two elements will be:
Anonymous Quiz
37%
XY
34%
XY2
22%
X2Y
6%
XY4
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Which of the following does not match the characteristics of an Isotope?
Anonymous Quiz
28%
Isotopes of some elements are radioactive
40%
Isotopes are the atoms of different elements
19%
Isotopes differ in number of neutrons
13%
Isotopes have similar chemical properties
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Which of the two will be chemically more reactive, Sulphur(S) with atomic number 16 or Chlorine (Cl) with atomic number 17?
Anonymous Quiz
30%
Chlorine
34%
Sulphur
30%
Both are equally reactive
6%
Can't say
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Which of the following elements does not exhibit the electrovalencey?
Anonymous Quiz
25%
Sodium
30%
Calcium
33%
Carbon
12%
Chlorine
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Which scientist gave the concept of fixed energy levels around the nucleus?
Anonymous Quiz
24%
Ernest Rutherford
40%
Neils Bohar
29%
J.J.Thomsan
6%
None of these
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