MCQ
General formula of alkane is
  • ${C_n}{H_{2n + 2}}$
  • B
    ${C_n}{H_{2n - 1}}$
  • C
    ${C_n}{H_{2n}}$
  • D
    ${C_n}{H_{2n + 1}}$

Answer

Correct option: A.
${C_n}{H_{2n + 2}}$
a
(a)General formula of alkane ${C_n}{H_{2n + 2}}$ ($n $= no. of atoms).

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

$XeF_{2(g)} + H_{2(g)} \to 2HF_{(g)} + Xe_{(g)}\, \Delta H^o = -430\, kJ$
Bond energy $\to H-H = 435\, kJ/mol$

                     $\to H-F = 565\, kJ/mol$
Calculate average bond energy of $Xe-F$ bond.....$ kJ/mol$

Consider an imaginary ion ${ }_{22}^{48} X ^{3-}$. The nucleus contains 'a'$\%$ more neutrons than the number of electrons in the ion. The value of '$a$' is $.....$ [nearest integer]
Select the $CORRECT$ set of group number and period of element $''Uub''$ .
What quantity (in $mL$) of a $45\%$ acid solution of a mono-protic strong acid must be mixed with a $20\%$ solution of the same acid to produce $800\, mL$ of a $29.875\%$ acid solution?
Possible alkyl radicals formed by $C _4 H _9$ is :
Which one of the following properties of an element is not variable
All the following $IUPAC$ names are correct except :
Which of the following compounds will not undergo Friedal-Craft's reaction easily?
Give the correct order of initials $T$ or $F$ for following statements. Use $T$ if  statement is true and $F$ if it is false :
$(I)$ The order of repulsion between different pair of electrons is $l_P - l_P > l_P - b_P > b_P - b_P$
$(II)$ In general, as the number of lone pair of electrons on central atom  increases, value of bond angle from normal bond angle also increases 
$(III)$ The number of lone pair on $O$ in $H_2O$ is $2$ while on $N$ in $NH_3$ is $1$
$(IV)$ The structures of xenon fluorides and xenon oxyfluorides could not be  explained on the basis of $VSEPR$ theory 
Values of dissociation constant, $K_a$ are given as follows

      Acid       $K_a$
      $HCN$       $6.2\times 10^{-10}$
      $HF$       $7.2\times 10^{-4}$
      $HNO_2$       $4.0\times 10^{-4}$

Correct order of increasing base strength of the base $CN^-,F^-$ and $NO_2^-$ will be