हिंदी

Science (English Medium) कक्षा १२ - CBSE Question Bank Solutions for Chemistry

Advertisements
[object Object]
[object Object]
विषयों
मुख्य विषय
अध्याय
Advertisements
Advertisements
Chemistry
< prev  381 to 400 of 4805  next > 

Match the terms given in Column I with the units given in Column II.

Column I Column II
(i) Λm (a) S cm-¹
(ii) ECell (b) m-¹
(iii) K (c) S cm2 mol-¹
(iv) G* (d) V
[2] Electrochemistry
Chapter: [2] Electrochemistry
Concept: undefined >> undefined

Match the terms given in Column I with the items given in Column II.

Column I Column II
(i) Λm (a) intensive property
(ii) ECell (b) depends on number of ions/volume
(iii) K (c) extensive property
(iv) ∆rGCell (d) increases with dilution
[2] Electrochemistry
Chapter: [2] Electrochemistry
Concept: undefined >> undefined

Advertisements

Match the items of Column I and Column II.

Column I Column II
(i) K (a) I × t
(ii) Λm (b) `Λ_m/Λ_m^0`
(iii) α (c) `K/c`
(iv) Q (d) `G^∗/R`
[2] Electrochemistry
Chapter: [2] Electrochemistry
Concept: undefined >> undefined

Assertion: ECell should have a positive value for the cell to function.

Reason: `"E"_("cathode") < "E"_("anode")`

[2] Electrochemistry
Chapter: [2] Electrochemistry
Concept: undefined >> undefined

Assertion: Mercury cell does not give steady potential.

Reason: In the cell reaction, ions are not involved in solution.

[2] Electrochemistry
Chapter: [2] Electrochemistry
Concept: undefined >> undefined

The term ‘sorption’ stands for ______.

[5] Surface Chemistry
Chapter: [5] Surface Chemistry
Concept: undefined >> undefined

Which one of the following is not applicable to the phenomenon of adsorption?

[5] Surface Chemistry
Chapter: [5] Surface Chemistry
Concept: undefined >> undefined

Which of the following is an example of absorption?

[5] Surface Chemistry
Chapter: [5] Surface Chemistry
Concept: undefined >> undefined

On the basis of data given below predict which of the following gases shows least adsorption on a definite amount of charcoal?

Gas CO2 SO2 CH1 H2
Critical temp./K 304 630 190 33
[5] Surface Chemistry
Chapter: [5] Surface Chemistry
Concept: undefined >> undefined

Which of the following process is not responsible for the presence of electric charge on the sol particles?

[5] Surface Chemistry
Chapter: [5] Surface Chemistry
Concept: undefined >> undefined

Which of the following phenomenon occurs when a chalk stick is dipped in ink?

(i) Adsorption of coloured substance.

(ii) Adsorption of solvent.

(iii) Absorption and adsorption both of solvent.

(iv) Absoprtion of solvent.

[5] Surface Chemistry
Chapter: [5] Surface Chemistry
Concept: undefined >> undefined

Which of the following statements are correct?

(i) A depressant prevents certain type of particle to come to the froth.

(ii) Copper matte contains \[\ce{Cu2S}\] and \[\ce{ZnS}\].

(iii) The solidified copper obtained from reverberatory furnace has blistered appearance due to evolution of \[\ce{SO2}\] during the extraction.

(iv) Zinc can be extracted by self-reduction.

[6] General Principles and Processes of Isolation of Elements
Chapter: [6] General Principles and Processes of Isolation of Elements
Concept: undefined >> undefined

What is the role of flux in metallurgical processes?

[6] General Principles and Processes of Isolation of Elements
Chapter: [6] General Principles and Processes of Isolation of Elements
Concept: undefined >> undefined

Identify the compound Y in the following reaction.

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric?

(a) \[\begin{array}{cc}
\ce{H}\\
|\\
\phantom{.}\ce{C^*}\phantom{}\\
\phantom{}/\phantom{..}|\phantom{..}\backslash\phantom{}\\
\phantom{.}\ce{I}\phantom{...}\ce{Br}\phantom{..}\ce{Cl}
\end{array}\]

(b) \[\begin{array}{cc}
\ce{D}\\
|\\
\phantom{.}\ce{C^*}\phantom{}\\
\phantom{}/\phantom{..}|\phantom{..}\backslash\phantom{}\\
\phantom{.}\ce{I}\phantom{...}\ce{Br}\phantom{..}\ce{Cl}
\end{array}\]

(c) \[\begin{array}{cc}
\ce{H}\\
|\\
\phantom{.}\ce{C^*}\phantom{}\\
\phantom{}/\phantom{..}|\phantom{..}\backslash\phantom{}\\
\phantom{..}\ce{OH}\phantom{..}\ce{C2H5}\phantom{}\ce{CH3}
\end{array}\]

(d) \[\begin{array}{cc}
\ce{H}\\
|\\
\phantom{.}\ce{C^*}\phantom{}\\
\phantom{}/\phantom{..}|\phantom{..}\backslash\phantom{}\\
\phantom{..}\ce{H}\phantom{...}\ce{C2H5}\phantom{}\ce{CH3}
\end{array}\]

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

Which of the following structures is enantiomeric with the molecule (A) given below:

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

Which of the following is an example of vic-dihalide?

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

The position of \[\ce{-Br}\] in the compound in \[\ce{CH3CH = CH(Br)(CH3)2}\] can be classified as ______.

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

Ethylidene chloride is a/an ______.

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined

Which is the correct IUPAC name for \[\begin{array}{cc}
\ce{CH3 - CH - CH2 - Br}\\
\phantom{}|\phantom{.......}\\
\phantom{}\ce{C2H5}\phantom{....}
\end{array}\]?

[6] Haloalkanes and Haloarenes
Chapter: [6] Haloalkanes and Haloarenes
Concept: undefined >> undefined
< prev  381 to 400 of 4805  next > 
Advertisements
Advertisements
CBSE Science (English Medium) कक्षा १२ Question Bank Solutions
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Biology
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Chemistry
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Computer Science (C++)
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Computer Science (Python)
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ English Core
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ English Elective - NCERT
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Entrepreneurship
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Geography
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Hindi (Core)
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Hindi (Elective)
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ History
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Informatics Practices
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Mathematics
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Physical Education
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Physics
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Political Science
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Psychology
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Sanskrit (Core)
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Sanskrit (Elective)
Question Bank Solutions for CBSE Science (English Medium) कक्षा १२ Sociology
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×