To find mean for grouped data
There are three methods to find mean for a frequency distribution. (i) Direct method: where x is the mid-interval f is the frequency M is the mean (ii) Short-cut method: where A = assumed mean d = x - A (iii) Step-deviation method: where i = class size We illustrate each of these methods w..
There are three methods to find mean for a frequency distribution. (i) Direct method: where x is the mid-interval f is the frequency M is the mean (ii) Short-cut method: where A = assumed mean d = x - A (iii) Step-deviation method: where i = class size We illustrate each of these methods w..Alkyl Groups
The univalent hydrocarbon unit derived from an alkane by the loss of one hydrogen atom is termed as alkyl group. Thus, an alkyl group ay be represented by the general formula C n H 2 n + 2 and denoted by R (an alkane is denoted as RH). The alkyl groups..
The univalent hydrocarbon unit derived from an alkane by the loss of one hydrogen atom is termed as alkyl group. Thus, an alkyl group ay be represented by the general formula C n H 2 n + 2 and denoted by R (an alkane is denoted as RH). The alkyl groups..Substitution by nitrite group
The halogen atom of haloalkane gets substituted by nitrite group (-O-N=O) when it is treated with sodium or potassium nitrite and forms alkyl nitrites. ..
The halogen atom of haloalkane gets substituted by nitrite group (-O-N=O) when it is treated with sodium or potassium nitrite and forms alkyl nitrites. ..Replacement by alkoxy group
(Formation of ethers) - Williamson Synthesis This reaction is called 'Williamson's synthesis' and is quite useful for preparing ethers. Haloalkanes can also be converted into ethers by heating with dry silver oxide. ..
(Formation of ethers) - Williamson Synthesis This reaction is called 'Williamson's synthesis' and is quite useful for preparing ethers. Haloalkanes can also be converted into ethers by heating with dry silver oxide. ..Substitution by mercaptide group
On treatment with mercaptide ion (RS - ) haloalkanes give thioethers. Thioethers are also formed by heating the haloalkanes with sodium or potassium sulphide. ..
On treatment with mercaptide ion (RS - ) haloalkanes give thioethers. Thioethers are also formed by heating the haloalkanes with sodium or potassium sulphide. ..Structure of the Carbonyl Group
Structure of the Carbonyl Group - The aldehydes and ketones have carbonyl group as the functional group. The carbonyl carbon sp 2 hybridized and thus has three sp 2 hybrid orbitals and one unhybridized p-orbital. It uses sp 2 hybrid orbitals to form three s -bonds one ..
Structure of Functional Groups
. Methanol has a dipole moment of 1.71 D whereas phenol has a dipole moment of 1.54 D. The smaller dipole moment of phenol is due to the electron withdrawing effect of phenyl group in contrast to the electron releasing effect of alkyl group in alcohols. In ethers, the four elect..
. Methanol has a dipole moment of 1.71 D whereas phenol has a dipole moment of 1.54 D. The smaller dipole moment of phenol is due to the electron withdrawing effect of phenyl group in contrast to the electron releasing effect of alkyl group in alcohols. In ethers, the four elect..Mrs.Smith has divided all the students in her class into groups. The l..
Mrs.Smith has divided all the students in her class into groups. The line plot shows the number of girls in each group. Find the mode of the data shown. => 11 or 5 or 9 or 4..
The tally chart represents the favorite colors of a group of students...
The tally chart represents the favorite colors of a group of students. Which graph represents the data correctly? => Graph 4 or Graph 2 or Graph 1 or Graph 3..
Find the mode of the set of data shown.M, S, R, S, S, M, M, R, M, R.
Find the mode of the set of data shown. M, S, R, S, S, M, M, R, M, R. => S or M or S, M or R, S..
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