Cosin used to detect end point of precipitation titration by absorption is called
Options
(a) chemical indicator (b) absorption indicator (c) normal indicator (d) adsorption indicator
Correct Answer:
adsorption indicator
Explanation: […]
The most effective electrolyte for the coagulation of As₂S₃ sol is
Options
(a) NaCl (b) Ba(NO₃)₂ (c) K₃[Fe(CN)₆] (d) AlCl₃
Correct Answer:
AlCl₃
Explanation:
No explanation available. Be the first to write the […]
In the electrolysis of aqueous solution of CuSO₄ using copper electrodes, the process that takes place at the anode is
Options
(a) SO₄²⁻ → SO₄ +2e⁻ (b) Cu → Cu⁺ + e⁻ (c) […]
Which of the following statements is true for the electrochemical Daniel cell
Options
(a) Electrons flow from copper electrode to zinc electrode (b) Current flows from zinc electrode to copper electrode (c) Cations […]
Each unit cell of NaCl consists of 6 chlorine atoms and
Options
(a) 13 Na atoms (b) 14 Na atoms (c) 8 Na atoms (d) 6 Na atoms
Correct Answer:
6 Na atoms
In crystals of which one of the following ionic compounds would you expect maximum distance between centres of cations and anions
Options
(a) CsI (b) CsF (c) LiF (d) LiI
Correct Answer:
CsI
When acetylene reacts with arsenic trichloride in the presence of anhydrous aluminium chloride, it produces
Options
(a) Nitrobenzene (b) beta-chlorovinyl dichloroarsinc (c) Lewisite (d) both (beta-chlorovinyl dichloroarsinc) and (Lewisite)
Correct Answer:
both (beta-chlorovinyl […]
The main constituent of a natural gas is
Options
(a) C₃H₈ (b) C₆H₆ (c) C₂H₂ (d) CH₄
Correct Answer:
CH₄
Explanation:
Methane (CH₄) occurs in natural gas to the extent of 80-85% and […]
If a compound, on analysis was found to contain C=18.5% ,H=1.55%, Cl=55.04% and O=24.81%, then its empirical formula is
Options
(a) C₂H₂OCl (b) CH₂ClO (c) CHClO (d) ClCH₂O
Correct Answer:
CHClO
Explanation:
No […]
The empirical formula of an acid is CH₂O₂ , the probable molecular formula of acid may be
Options
(a) CH₂O (b) CH₂O₂ (c) C₂H₄O₂ (d) C₃H₆O₄
Correct Answer:
CH₂O₂
Explanation:
The molecular formula […]
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