Select Board & Class
how many isomers are for C6H14 and what are they?
EXPLAIN THE CLEANING ACTION OF SOAPS IN A SYSTEMATIC MANNER.
Explain the cleansing action of soap.
pH of water is 7.0 at 25 C.if water is heated to 70 C
A)pH will decrease and solution becomes acidic.
B)pH will increase
C)pH will remain constant as 7
D)pH will decrease but solution will be neutral
what are the characteristics of homologous series?
CnH2n+1 is the general formula of which homologous series?
give the structure of all the isomers of hexane.
what do u mean by "free state" or "combined state" ???
Differentiate between saturated and unsaturated hydrocarbons giving one example of each.
Q.1: Which of the following is not a saturated hydrocarbon?
(a) Cyclohexane (b) benzene (c) butane (d) isobutane
Q.2: The bond between two identical nonmetallic atoms has a pair of electron?
(a) Unequally shared between two atoms
(b) Transferred completely from one atom to another
(c) With identical spins
(d) Equally shared between them
Q.3: Covalent compounds are generally –
(a) Soluble in water (b) insoluble in water
(c) Ionize in water (d) hydrolyse in water
Q.4: Which amongst the following is an unsaturated hydrocarbon?
(a) Cyclobutane (b) Propane (c) Propyne (d) Hexane.
Q.5: The number of structural isomers possible for pentane is –
(a) 2 (b) 3 (c) 4 (d) None of these.
Q.6: Which of the following substance is added to denature Ethanol?
(a) Methanol (b) pyridine (c) copper sulphate (d) all of these
Q.7: Which of the following is not an allotropic form of carbon?
(a) Fluorine (b) fullerene (c) diamond (d) graphite
Q.8: Which of the following represents the correct deceasing order of hydrogen atoms?
(a) Alkanes, alkenes, alkynes (b) alkanes, alkynes, alkenes
(c) Alkenes, alkynes, alkanes (d) alkynes, alkanes, alkenes
Q.9: Compounds having same molecular formula but different structural formula are called –
(a) Isotopes (b) Homologous (c) Isomers (d) Isobars
Q.10: The suffix used for naming an aldehyde is
(a) Ol (b) al (c) one (d) ene.
What Is The Difference Between Soaps And Detergents?
Tabular Form Would Be Good...
What is saponification reaction? Explain with an example
their electron dot structures.
how to differentiate between ethanol and ethanoic acid on basis of chemical properties?
what is the IUPAC name of CH3-CH2-CH(Cl)-COOH ?????
how would you distinguish experimentally between an alcohol & a carboxylic acid?
Complete these reactions:-
H2C=CH2 + H2O (in the presence of H2SO4) -----
H2C=CH2+ Cl2 -------------
Describe a chemical test to distinguish between ethanol and ethanoic acid
Write the IUPAC names of the following.
a) CH3 - CH2 - CHBr - CH3.
b) CH3 - CH2 - COOH.
what is esterification reaction ?
Draw the electron dot structure of O2 ,CO2 , Cl2 , N2 , H2O, NH3 , S8.
Write the IUPAC name as well as Structure formula for :
what is the advantages and disadvantages of soap and detergents
Why the carbon compounds are poor conductor of electricity?
list the sources of hard water and soft water separately ????
what happens when sodium acetate is heated with soda lime
Why can't we have the isomers of first 3 members of alkane series ?
WHAT IS FORMULA OF HARD WATER???
Does Ethanol React With Sodium Carbonate??
what is the difference between condensation and addition polymerisation ???? and how iz nylon 6,6 formed ???
write IUPAC names of -
give a test that can be used to differentiate chemically between butter and cooking oil
WHAT HAPPENS WHEN ETHANOIC ACID REACTS WITH SODIUM HYDROXIDE? WRITE EQUATION OF THE REACTION INVOLVED.
what is catenation?
Will benzene decolourise bromine water or not and why?
difference between Substitution reaction and Addition reaction???????
What is the IUPAC name of CH3CH=CHCH(CH3)2
Structural formula of propanone
isometrs of c7h14
why can't we have isomers of the first three members of the alkane series
Are cyclohexane and hexene isomers?
as both of them have same molecular formula of C6H12
CH3CH2COOC2H5+NaOH ---> ___________ + C2H5OH
What is Homologous series? Explain with an example.
why formalin is used to preserve biological specimens?
why homologous series of carbon compounds are so called? Write two chemical formula of two consecutive members of a homologous series and state the part of these compounds that determine their (a) physical properties and (b)chemical properties.
Which is the first member of Aldehyde , ketone and Carboxylic acid functional group?
What are micelles? how it is formed? & Explain the process of removal of dirts by soaps & detergents.
Which three compounds are members of the same homologous series?
C2H4, C3H8, C4H10
CH3Br, C2H5Br, C3H7Br
CH4, C2H5OH, C3H7Cl
CH3OH, C2H5Cl, C3H7COOH
A series of organic compounds that contains the same functional group and in which the number of carbon atoms in each consecutive member differs by one is called a homologous series for that functional group. The series CH3Br, C2H5Br, and C3H7Br represents the first three members of the homologous series of bromides.
The correct answer is B.
why the answer is B and not A
draw the electron dout structure of propene, propyne,prpanous propanic acid?
Saturated hydrocarbons will generally give a clean flame but unsaturated sooty flame. Why?
name the ester C2H5COOC2H5 and name the alcohol and carboxylic acid which react to form it.
Explain Versatile nature of carbon?
Mention IUPAC name of the following Compounds.
CH3CH2COCH3 and CH3COOH2CH3
why is graphite a good conductor of electricity???
how can differentiate between aldehyde and ketone
what happens when methanol reacts with sodium metal?
What happens when ethanol is heated with concentrated H2SO4 at 443 K? Give the
Difference between daimond and graphite. For 5marks
why does micelle formation take place when soap is added to water?will a micelle be formed in other solvents such as ethinol also?
why are covalent compounds poor conductors of electricity?
what is the chemical properties of ethanoic acid?
Soaps are sodium or potassium salts of long chain carboxylic acids. But soap turns red litmus blue that is they are basic in nature. Why?
why carbon form large number of compounds?
what is the functional group of methanoi and methanal ?
Explain cleansing action of detergents.
all isomers of C7H15Cl
Define functional group .
What happens when:-
1.Ethanoic acid reacts with sodium carbonate ?
2.Ethanol reacts with ethanoic acid in the presence of sulphuric acid.
3.Hydrogenation of vegetable oils is carried out?
4.Methane is burned in presence of oxygen.
5.methane is treated with chlorine in presence of sunlight.
are all ionic compounds polar and all non ionic compounds non polar compounds?/
Why doesn't soap form micelles in ethanol as they form in water?????????????
Thumbzz up guaranteed.
what is the cause for allotropy?
Define 'isomerism' and give few examples?
give me structure of 2,3-dimethylbutane. and explain me that how u derive the formula of this isomers of hexane C6H14
is benzene saturated or unsaturated ?
structure of 2-Chloro-3-methyl butane
why does carbon form only covalent bonds?
Copyright © 2021 Aakash EduTech Pvt. Ltd. All rights reserved.
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)