Longest Chain Rule

Q.

Define metamerism.

Q.

What are the $7$ fundamental quantities and their units?

Q.

What are fundamental physical quantities?

Q.

Derive relation between power, force and velocity.

Q.

Name the functional groups present in the following compounds :

$\left(\mathrm{a}\right){\mathrm{CH}}_3{\mathrm{COCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3\left(\mathrm{b}\right){\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{COOH}\left(\mathrm{c}\right){\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CHO}\left(\mathrm{d}\right){\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$

Q.

Write the IUPAC name of ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CH}={\mathrm{CH}}_2$.

Q.

Which of the following is not the name of a physical quantity?

1. Kilogram

2. Mass

3. Time

4. Impulse

Q.

The IUPAC name of the compound

$H_{3}C-\underset{C_2{H}_5}{\underset{|}{CH}}-\underset{C_2{H}_5}{\underset{|}{CH}}-C{H}_3$

1. 2, 3-diethylbutane

2. 3, 4-dimethylhexane

3. 2-ethyl-3-methylpentane

4. 3-methyl-2-ethylpentane

Q.

The correct IUPAC name of the compound.

is

1. 3 - ethyl - 4 - ethenylheptane

2. 3 - ethyl - 4 - propylhex - 5 - ene

3. 3 - (1 - ethyl propyl) hex - 1 - ene

4. 4 - ethyl - 3 - propylhex - 1 - ene

Q. In chemistry, in the chapter hydrocarbons,
R-CH=CH₂when reacted in the presence of Hg(OAc)₂ H₂O.THF gives R-CHOH-CH₂HgOAc + AcOH
here, what is the meaning of OAc??????

Q.

Why do we need to measure time?

Q.

The systematic (IUPAC) name of tertiary butyl chloride is:

1. t-Butyl-chloride

2. tert-Butyl-chloride

3. 1-Chloro-3-methylpropane

4. 2-Chloro-2-methyl propane

Q. Which is an acyclic compound :

1. Methane
2. Benzene
3. Pyrrole
4. Cyclobutane

Q.

Why we tend to measure weight in kg rather than newton?

Q.

Give the structure of 5 – (2 – Ethyl butyl) – 3, 3 – di-methyl-decane

Q. The major products A and B formed in the following reaction sequence are :


\( A \frac{ Br _{2^{2}} CH _{3} COOH }{\text { Room Temperature }} \rightarrow B \)

Q.

Gram weight is a unit of:

1. mass

2. weight

3. A and B both

4. neither A nor B

Q. Write the names of:

(a) first three members of carboxylic acid series.

Q.

Name the simplest aldehyde and ketone.

Q. Geometrical isomerism is shown by?

1. 2-butanol
2. Butanal
3. 2-butene
4. 2-butyne

Q.

Define the term fundamental unit. Name the fundamental units of mass, length, time, current, and temperature.

Q. Possible number of enantiomeric pairs for the complex of the type $\left[M\right(AB{)}_2{a}_2{]}^{n\pm }$ is/are:
Here,
$AB$ is an unsymmetrical bidentate ligand whereas $a$ is a monodentate ligands

1. 1
2. 2
3. 3
4. 4

Q.

Is sugar a hydrocarbon?

Q.

A $150kg$ car engine develops $500W$ for each kg. What force does it exert to move the car at a speed of $20m{s}^{-1}$?

Q. IUPAC name of ethylidene cholride is 1, 2-dichloroethane. Does 'ene' in ethylidene not represent double bond ?

Q.

$C_5{H}_{12}$ has a symmetrical structure with one quaternary carbon. Its IUPAC name is:

1. 2-Methylbutane

2. n-Pentane

3. 2, 2-Dimethylpropane

4. 1-Methylbutane

Q.

What is power? How do you differentiate kilowatt from kilowatt-hour? The Jog Falls in Karnataka state are nearly 20 m high. 2000 tonnes of waterfalls from it in a minute. Calculate the equivalent power if all this energy can be utilized? (g = 10 m s–2)

Q. Write the IUPAC name of compound.

Q.

A machine is driven by a $100\mathrm{kg}$ mass that falls $8\mathrm{m}$ on $4$ seconds. If the efficiency of the machine is $75\%$, what is the power output?

1. $2000\mathrm{W}$

2. $1000\mathrm{W}$

3. $9202.2\mathrm{W}$

4. $150\mathrm{W}$

Q.

What Are The Base Units In The Si System Of Units?