_____ moles are equivalent to 8 grams of CO₂.
_____ moles are equivalent to 8 grams of CO₂.
0.15 | |
0.28 | |
0.18 | |
0.21 |
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In the redox reaction between Zn and HCl, oxidizing agent is:
In the redox reaction between Zn and HCl, oxidizing agent is:
Cl⁻ | |
H₂ | |
H⁺ | |
Zn |
Molarity is the number of moles of solute dissolved in:
Molarity is the number of moles of solute dissolved in:
1 dm³ of solution | |
100 g of solvent | |
1 Kg of solution | |
1 dm³ of solvent |
The most common example of corrosion is:
The most common example of corrosion is:
Chemical Decay | |
Rusting of Iron | |
Rusting of Aluminium | |
Rusting of Tin |
_____ is the compound which is not soluble in water.
_____ is the compound which is not soluble in water.
KBr | |
NaCl | |
C6H6 | |
MgCl2 |
_____ of the following gases diffuses faster.
_____ of the following gases diffuses faster.
Fluorine | |
Chlorine | |
Nitrogen | |
Hydrogen |
Out of the following, _____ is less malleable metal.
Out of the following, _____ is less malleable metal.
Silver | |
Gold | |
Iron | |
Sodium |
The Empirical Formula of Benzene is:
The Empirical Formula of Benzene is:
HO | |
C₆H₁₂O₆ | |
C₆H₆ | |
CH |
The oxidation number of Sulphur in H₂SO₄ is:
The oxidation number of Sulphur in H₂SO₄ is:
+4 | |
+8 | |
+6 | |
+2 |
Out of the following non-metals, _____ is lustrous.
Out of the following non-metals, _____ is lustrous.
Iodine | |
Sulphur | |
Carbon | |
Phosphorus |
Melting point of Sodium Chloride is:
Melting point of Sodium Chloride is:
1000°C | |
1413°C | |
900°C | |
800°C |
Out of the following compounds, _____ is not directional in its bonding.
Out of the following compounds, _____ is not directional in its bonding.
CH₄ | |
H₂O | |
KBr | |
CO₂ |
_____ of the following molecules is diatomic.
_____ of the following molecules is diatomic.
CO₂ | |
H₂O | |
H₂ | |
O₃ |
In a period, _____ remains same.
In a period, _____ remains same.
Ionization Energy | |
Shielding Effect | |
Atomic Radius | |
Electron Affinity |
When U-235 breaks up, it produces:
When U-235 breaks up, it produces:
Protons | |
Neutrons | |
Positrons | |
Electrons |
Mist is an example of solution.
Mist is an example of solution.
Liquid in gas | |
Solid in gas | |
Gas in solid | |
Gas in liquid |
_____ of the following motions is possessed by solid particles.
_____ of the following motions is possessed by solid particles.
Rotational motion | |
Translational motion | |
Vibrational motion | |
Non-vibrational motion |
Out of the following, _____ solutions contain less water.
Out of the following, _____ solutions contain less water.
1M | |
2M | |
0.25M | |
0.5M |
Out of the following, _____ is a weak electrolyte.
Out of the following, _____ is a weak electrolyte.
H₂SO₄ in water | |
NaOH in water | |
NaCl in water | |
CH₃COOH in water |
وادی حنین اور مکہ مکرمہ کے درمیان فاصلہ ہے:
وادی حنین اور مکہ مکرمہ کے درمیان فاصلہ ہے
30 کلومیٹر | |
50 کلومیٹر | |
40 کلومیٹر | |
20 کلومیٹر |