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प्रश्न
Draw the electron dot structures for H2S.
उत्तर
OR
H – S – H
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संबंधित प्रश्न
Give any two differences between alkanes and alkenes.
Write the number of covalent bonds in the molecule of ethane.
Give a chemical test to distinguish between saturated and unsaturated hydrocarbons.
Draw the electron dot structures for propanone.
Draw the electron dot structures for F2.
Write a short note on Catenation.
Write the electron-dot structures for ethene.
An unsaturated hydrocarbon having a triple covalent bond has 50 hydrogen atoms in its molecule. The number of carbon atoms in its molecule will be:
(a) 24
(b) 25
(c) 26
(d) 28
Which of the following hydrocarbons is unsaturated?
C3H4; C2H6
Name two catalysts which can be used in the hydrogenation of unsaturated compounds.
Fill in the blanks and rewrite the completed statements:
The organic compounds having double or triple bond in them are termed as _________________ _________________.
Which among the following are unsaturated hydrocarbons?
- \[\ce{H3C - CH2 - CH2 - CH3}\]
- \[\ce{H3C - C ≡ C - CH3}\]
- \[\begin{array}{cc}
\ce{H3C - CH - CH3}\\
|\phantom{..}\\
\phantom{.}\ce{CH3}
\end{array}\] - \[\begin{array}{cc}
\ce{H3C - C = CH2}\\
|\phantom{.}\\
\phantom{..}\ce{CH3}
\end{array}\]
Structural formula of ethyne is ______.
Which of the following is the correct representation of electron dot structure of nitrogen?
Pentane has the molecular formula C5 H12 It has
What is the role of metal or reagents written on arrows in the given chemical reactions?
- \[\begin{array}{cc}
\ce{CH3}\phantom{.....}\ce{CH3}\phantom{.........}\ce{CH3}\phantom{..}\ce{CH3}\phantom{..........}\\
\phantom{...}\backslash\phantom{......}/\phantom{................}|\phantom{.....}|\phantom{............}\\
\ce{C} = \ce{C} + \ce{H2} \overset{\ce{Ni}}{\rightarrow} \ce{CH3 - C - C - CH3}\\
\phantom{.}/\phantom{........}\backslash\phantom{..............}|\phantom{....}|\phantom{.........}\\
\ce{CH3}\phantom{....}\ce{CH3}\phantom{............}\ce{H}\phantom{...}\ce{H}\phantom{........}
\end{array}\] - \[\ce{CH3COOH + CH3CH2OH \overset{\ce{Conc. H2SO4}}{\rightarrow}CH3COOC2H5 + H2O}\]
- \[\ce{CH3CH2OH}\ce{->[Alk.KMnO4][Heat]CH3COOH}\]
- What are hydrocarbons? Give examples.
- Give the structural differences between saturated and unsaturated hydrocarbons with two examples each.
- What is a functional group? Give examples of four different functional groups.
The formulae of four organic compounds are shown below. Choose the correct option
| A | B | C | D |
| \[\begin{array}{cc} \phantom{.}\ce{H}\phantom{......}\ce{H}\\ \phantom{.}\backslash\phantom{.....}/\\ \ce{C = C}\\ /\phantom{.....}\backslash\\ \ce{H}\phantom{......}\ce{H} \end{array}\] |
\[\begin{array}{cc} \phantom{........}\ce{H}\phantom{.....}\ce{O}\\ \phantom{.......}|\phantom{....}//\\ \ce{H - C - C}\\ \phantom{......}|\phantom{.....}\backslash\\ \phantom{...........}\ce{H}\phantom{.....}\ce{O - H} \end{array}\] |
\[\begin{array}{cc}
|
\[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\phantom{....}\\ |\phantom{....}|\phantom{....}\\ \ce{H - C - C - O - H}\\ |\phantom{....}|\phantom{.....}\\ \ce{H}\phantom{....}\ce{H}\phantom{.....} \end{array}\] |
