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A compound with molecular formula CH2O2 is
A) A Carbohydrate
B) A Carboxylic acid
C) An alkanol
D) An ester
Related Lesson: Carboxylic Acids and Esters | Organic Chemistry
Comments (3)The quantity of electricity required to discharge 1 mole of univalent ion is
A) 9600 C
B) 48250 C
C) 96500 C
D) 193000 C
Related Lesson: The Mole | Quantitative Aspects of Chemical Change
Comments (2)Chlorine water is used as a bleaching agent because it is
A) An acidic solution
B) An alkaline solution
C) An oxidizing agent
D) A reducing agent
Related Lesson: Properties of the Halogens | Metals, Metalloids, and Nonmetals
Comments (4)Which of the following substances is a non-electrolyte?
A) H2SO4
B) CH3COOH
C) C6H12O6
D) NH4Cl
Related Lesson: Electrolytes, Ionization and Conductivity | Reactions in Aqueous Solution
Comments (2)The oxidation number of sulphur is +4 in
A) Na2S2O3
B) H2SO3
C) H2SO4
D) SO3
Related Lesson: Oxidation Numbers | Acid-Base and Redox Reactions
Comments (1)Consider the following ionic equation:
Cr2O72- + 14H+ + ne- → 2Cr3+ + 7H2O.
The value of n in the equation is _______?
A) 7
B) 6
C) 3
D) 2
Related Lesson: Equations for Ionic Reactions | Chemical Reactions and Stoichiometry
Comments (3)Consider the following half-cell reactions.
Al(s) → Al3+(aq) + 3e-
Cu2+(aq) + 2e- → Cu(s)
The overall equation for the reaction is
A) Al(s) + Cu2+(aq) → Al3+(aq) + Cu(s)
B) 2Al(s) + Cu2+(aq) → 2Al(aq) + Cu(s)
C) 2Al(s) + 3Cu2+(aq) → 3Cu(s) + 2Al3+(aq)
D) 3Al(s) + 2Cu2+(aq) → Cu(s) + 3Al3+(aq)
Related Lesson: Standard Thermodynamic Properties for Selected Substances | Thermochemistry
Comments (2)Amino acids are obtained from proteins by
A) Hydrolysis
B) Oxidation
C) Polymerization
D) Reduction
Related Lesson: Amino Acids | Organic Chemistry
Comments (2)When a compound X is heated with concentrated tetraoxosulphate (VI) acid, it produces an alkene. X is an
A) Alkane
B) Alkanol
C) Alkanoate
D) Alkyne
Related Lesson: Producing Sulfuric Acid | Chemistry and the Real World
Comments (1)Ripening of fruits is hastened by using
A) Ethanol
B) Ethane
C) Ethene
D) Ethyne
Related Lesson: The Alkenes | Organic Molecules
Comments (2)