Advertisements
Advertisements
Question
Draw the electron dot structures for H2S.
Solution
OR
H – S – H
APPEARS IN
RELATED QUESTIONS
‘A’ is an element having four electrons in its outermost orbit. An allotropes ‘B’ of this element is used as a dry lubricant in machinery and in pencil leads. So:
i. Write the name of element ‘A’ and its allotropes.
ii. State whether ‘B’ is a good conductor or non-conductor of electricity?
Define Catenation.
Write the number of covalent bonds in the molecule of ethane.
How many structural isomers can you draw for pentane?
What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?
Why are certain compounds called hydrocarbons? Write the general formula for homologous series of alkanes, alkenes and alkynes and also draw the structure of the first member of each series. Write the name of the reaction that converts alkenes into alkanes and also write a chemical equation to show the necessary conditions for the reaction to occur.
Write the electron-dot structures for ethyne.
Giving their structures, state the number of single bonds, double bonds and triple bonds (if any) in the following compounds:
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
Name two catalysts which can be used in the hydrogenation of unsaturated compounds.
Which of the following will give addition reaction and why?
C4H10, C2H6, C2H4, CH4, C3H8, C3H4
What is added to groundnut oil when it is to be converted to vanaspati ghee?
Name the reaction which is usually used in the conversion of vegetables oils to fats. Explain the reaction involved in detail. Write a chemical equation to illustrate your answer.
How many double bonds are there in a saturated hydrocarbon?
In which of the following compounds, — OH is the functional group?
Pentane has the molecular formula C5 H12 It has
Write the name of the following compound
\[\begin{array}{cc}
\phantom{....}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{O}\phantom{......}\\
\phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}||\phantom{......}\\
\ce{H} - \ce{C} - \ce{C} - \ce{C} - \ce{C} - \ce{C} - \ce{OH}\\
\phantom{}|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{.......}\\
\phantom{}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{.......}\\
\end{array}\]
Name the functional groups present in the following compounds
- CH3 CO CH2 CH2 CH2 CH3
- CH3 CH2 CH2 COOH
- CH3 CH2 CH2 CH2 CHO
- CH3 CH2 OH
- Write the name and draw the structure of a saturated hydrocarbon with four carbon atoms.
- Write the number of single covalent bonds present in this compound.
