Which of the following has zero valency
Which of the following has zero valency
Options
(a) He (b) H (c) O (d) Na
Correct Answer:
He
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Questions
The presence of colloidal particles can be confirmed with the help of
The presence of colloidal particles can be confirmed with the help of
Options
(a) naked eye (b) ordinary microscope (c) ultramicroscope (d) none of these
Correct Answer:
ultramicroscope
Explanation:
No explanation available. Be […]
Colloidal found effective in medicines is
Colloidal found effective in medicines is
Options
(a) colloidal gold (b) colloidal sulphur (c) colloidal antimony (d) all of these
Correct Answer:
all of these
Explanation:
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An increase in equivalent conductance of a strong electrolyte
An increase in equivalent conductance of a strong electrolyte with dilution is mainly due to
Options
(a) increase in ionic mobility of ions (b) 100% ionisation of electrolyte at normal dilution (c) increase […]
How many coulombs are required for the oxidation of 1 mole H₂O to O₂
How many coulombs are required for the oxidation of 1 mole H₂O to O₂
Options
(a) 3.86 x 10⁵ C (b) 1.93 x 10⁵ C (c) 4.825 x 10⁴ C (d) 9.65 x […]
In a face-centered cubic lattice, a unit cell is shared equally by how many unit
In a face-centered cubic lattice, a unit cell is shared equally by how many unit cells
Options
(a) 2 (b) 4 (c) 6 (d) 8
Correct Answer:
6
Explanation:
No explanation available. Be […]
Which of the following is ferroelectric compound
Which of the following is ferroelectric compound
Options
(a) Pb₂O₃ (b) BaTiO₃ (c) PbZrO₃ (d) K₄[Fe(CN₆)]
Correct Answer:
BaTiO₃
Explanation:
No explanation available. Be the first to write the explanation for this question […]
In preparation of alkene from alcohol using Al₂O₃ which is an effective factor
In preparation of alkene from alcohol using Al₂O₃ which is an effective factor
Options
(a) Porosity of Al₂O₃ (b) temperature (c) concentration (d) surface area of Al₂O₃
Correct Answer:
Porosity of Al₂O₃
Explanation: […]
Fischer-Tropsch process is used in the manufacture of
Fischer-Tropsch process is used in the manufacture of
Options
(a) ethanoic acid (b) ethanol (c) synthetic petrol (d) benzene
Correct Answer:
synthetic petrol
Explanation:
In Fischer – Tropsch process steam is first passed […]
Write the IUPAC name of CH₃CH₂COOH
Write the IUPAC name of CH₃CH₂COOH
Options
(a) ethylformic acid (b) ethylcarboxylic acid (c) ethane methanoic acid (d) propanoic acid
Correct Answer:
propanoic acid
Explanation:
No explanation available. Be the first to write […]