The standard emf of galvanic cell involving 3 moles of electrons in its redox reaction is 0.59 V. The equilibrium constant for the reaction of the cell is
Options
(a) 10²⁵ (b) 10²° […]
In electrolysis of NaCl when Pt electrode is taken then H₂ is liberated at cathode while with Hg cathode it forms sodium amalgam
Options
(a) Hg is more inert than Pt (b) More […]
The crystal structure of solid Mn(II) oxide is
Options
(a) NaCl structure (b) Fe₂O₃ structure (c) CaF₂ structure (d) Na₂O structure
Correct Answer:
NaCl structure
Explanation:
No explanation available. Be the first to […]
The pyknometric density of sodium chloride crystal is 2.165 x 10³ kg m⁻³, while its X-rays density is 2.178 x 10³ kg m⁻³. The fraction of unoccupied sites in sodium chloride crystal is
Options […]
In which of the following hydrocarbons, hydrogen is most acidic
Options
(a) CH₂=CH₂ (b) CH≡CH (c) CH₃ -CH₃ (d) none of these
Correct Answer:
CH≡CH
Explanation:
No explanation available. Be the first to […]
Both ethan and methane can be obtained in one step reaction from
Options
(a) CH₃OH (b) C₂H₅OH (c) CH₃Br (d) C₂H₄
Correct Answer:
CH₃Br
Explanation:
No explanation available. Be the first to write […]
Gasoline is a mixture of hydrocarbons containing
Options
(a) C₃ to C₅ carbon atoms (b) C₇ anf C₉ carbons atoms (c) C₁₂ to C₁₆ carbons atoms (d) C₁₄ to C₁₈ carbon atoms
If we want to study relative arrangement of atoms in a molecule we study
Options
(a) empirical formula (b) molecular formula (c) structural formula (d) none of these
Correct Answer:
structural formula
Explanation: […]
The correct order of stability of the superoxides is
Options
(a) KO₂ > RbO₂ > CsO₂ (b) KO₂ > CsO₂ > RbO₂ (c) CsO₂ > RbO₂ > KO₂ (d) RbO₂ > CsO₂ > […]
Which of the following higher hydration energy
Options
(a) MgCl₂ (b) CaCl₂ (c) BaCl₂ (d) SrCl₂
Correct Answer:
MgCl₂
Explanation:
No explanation available. Be the first to write the explanation for this question […]
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