End Test Now
The hybridization state of C atom in butendioic acid is:
both two
sp
Which of the following is not a isomer of pentane :
n-pentane
2, 2-dimethy 1 propane
2, 3-dimethy 1 butane
2-methy 1 butane
The oxidation number of C atom in and are respectively :
-2 and – 4
0 and – 4
0 and 4
2 and 4
Which of the following dissolves in lonic solvents :
The conjugate acid of HS is :
none
Phenolphthalein of pH range [8-10] is used in which of the following type of titration as a suitable indicator :
NaOH and
Which of the following is iron are :
Malachite
Hernatite
Siderite
Limonite
The molar concentration of chloride ions in the resulting solution of 300 ml.of 3.0 M NaCI and 200 ml. of 4.0 M Ba will be :
1.7 M
1.8 M
5.0 M
3.5 M
Which of the following has least bond energy :
Which of the following species has highest bond energy :
Which of the following compound is not aromatic :
1, 3-cyclobutene
pyridine
furane
thiophene
Which of the following compound is used as refrigerant :
Acetone
Which of the following is weak acid :
L.P.G. mainly consist of the following :
Methane
Hydrogen
Acetylene
Butane
The solubility product of is . The solubility will be :
The outer electronic configuration of alkali earth metals is :
The nature of 2, 4, 6-trinitrophenol is :
Neutral
Basic
Acidic
Weak basic
Which of the following group is sharp ortho and pa ra directive :
-OH
–CI
By which of the following process hydrocarbons are found from petroleum :
combustion
fractional distillation
addition
all above
A sample of petroleum contains 30% n-heptane, 10% 2-methyl hexane and 60% 2, 2, 4-trimethyl pentane, the octane no. of this sample will be :
30%
60%
10%
70%
In which of the following halogens p-electrons does not take part in resonance :
Which of the following statement is false :
40% solution HCHO is known as formalin
HCHO is least reactive in its homologous series
The B.P. of isovarelaldehyde is less than n-varelaldehyde
The boiling point of ketones are higher than that of aldehydes
If n + = 8 then the expected no. of orbitals will be :
4
9
16
25
here the compound C will be :
Lewsite
Westron
Acetylene tetra chloride
Both 2 and 3
Which of the following is least hydrolysed :
The laughing gas is :
NO
The hydrogen ion concentration of a solution is mole per liter. The pH value of this solution will be :
6.0
5.8
5.4
5.9
The reaction of sodium acetate and sodalime gives :
Ethane
Propane
Which of the following acids does not contain – COOH group :
Carbamic acid
Barbituric acid
Lactic acid
succinnic acid
Which of the following compound of xenone does not exists :
Mohr’s salt
Blue vitriol
Green vitriol
White vitriol
The solution of BiCl3 in dil. HCI when diluted with water white precipitate is formed which is :
Bismith oxychloride
Bismith oxide
Bismith hydroxide
none of these
The strongest acid is :
acetic acid
trichloroacetic acid
dichloracetic acid
monochloroacetic acid
The false statement regarding alkane is :
This does not perform polymerization reaction
This does not gives elimination reaction
It does not disappear the colour of dilute KMnO_4 solution
It does not decolourise bromine water
Which of the following is strongest base :
Which of the following aromatic compound gives sulphonation reaction very easily :
Chlorobenzene
Nitrobenzene
Toluene
benzene
The geometry of I3- is :
Triangular
Linear
Tetrahedral
T-shape
The half life of a radio active element is 140 days. 1 gm. of this element after 560 days will become :
The volume concentration of hydrogen peroxide 6.8% concentration will be :
5
11.2
22.4
20
Which of the following on combustion give maximum energy :
C6H6 + CH3CI C6H5CH3 + HCI The name of above reaction is :
Gattermann
Reimer-tiemann
Friedel-Craft
Cannizaro
The oxidation state of Cr in is :
+4
+3
+6
+5
The natural rubber is the polymer of :
1, 3- butadiene
polyamide
isoprene
Nylone-66 is a :
polyester
polyacrylate
2NO(g) + NOCI The equilibrium constant for this reaction is :
anhydrans ZnO
anhydrous
solid KOH
The values of for HCN and COOH are 7.2 x and 1.75 x (at C) respectively. The strongest acid amongst them is :
HCN
both
In which of the following carbon atom (asterisk) is asymmetric :
Benzene reacts with in presence of Lewis acid to form :
Acetophenone
Benzyl Chloride
Which of the following is reducing agent :
In which of the following alkyl chloride the possibility of reaction mechanism is maximum :
The energy produced realated to mass decay of 0.02 amu is :
28.2 MeV
931 MeV
18.62 MeV
The mole of hydrogen ion in 50 ml. of 0.1 M HCI solution will be :
Petroleum is mainly consist of :
Aliphatic alcohol
Aromatic hydrocarbon
Alipnetic hydrocarbon
None of these
F3 is :
Bronsted base
Lewis base
Lewis acid
Bronsted acid
Which of the following compound gives violet colour with solution:
Benzaldehyde
Aniline
Phenol
Hypo solution forms which of the following complex compound with AgCI :
Molecular oxygen is :
ferro magnetic
diamagnetic
para magnetic
non magnetic
Bonds in acetylene are :
The false statement for Griynaed reagent is :
It gives tertiary alcohol with acetamide
It gives tertiary alcohol with acetone
It gives secondary alcohol with acetaldehyde
It gives primary alcohol with formaldehyde
Which of the following alkane exists is liquid state at normal temperature :
The solubility of AgCI at C will be maximum in :
Potassium chloride solution
Water
All above
The weight of a benzene molecule is :
78 gm.
7.8 gm.
iorn pyrites
malachite
chalcosite
chalcopyrites
Primary halides follow the following reaction mechanism :
C and Si belong to the same group of periodic table, is a gas and is a :
liquid
gas
solid
there is association due to hydrogen bonding
bond energy of OH high
the ionization potential of oxygen is high
the electro negativity of oxygen is high
“The negative part of the molecule adding to the double bond goes to that unsaturated asymmetric carbon atom which is linked to the least number of hydrogen atoms.” This statement is related to :
Markownikoff’s law
Peroxide effect
Bayer’s law of distortion
The conjugate base of NH3 is :
(a) 2,2 (b) 2,2
(a) 1,2 (b) 2,1
(a) 2,1 (b) 2,3
(a) 2,1 (b) 2,1
In which of the following compound there are maximum no. of hybrid C atoms:
Benzene
1,3,5-hexatriene
1,2,4-hexatriene
both 1 and 2
The shape of the molecule having hybrid orbitals of 20% character will be :
octahedral
tetrahedral
square planer
triangular bipyramidal
The pH of a solution is 5. If the dilution of this solution is increased by 100 times, the pH value will be :
7
8
The required amount of oxygen for combustion of 20 ml. of gaseous hydrocarbon is 50 ml. The hydrocarbon will be :
The formula of Celestine is :
SrO
4 faraday
2 faraday
1 faraday
3 faraday
Nitrogen does not forms because :
The bondenergy of is very high
Vaccent d-orbitals are not present
N belongs to V group
There is inert effect
The normal temperature when raised by C, the rate of reaction will be :
lowered by 2 times
increased by 2 times
lowered by 10 times
increased by 10 times
Which of the following gives red precipitate with ammonical cuprous chloride :
A solution contains CI-, and ions in it. Which of the following ion is capable to precipitate all of above when added in this solution :
Fool’s gold is :
In which of the following compound the central atom is in hybrid state :
The number of alkenyl groups possible from are :
3
The tetraethyl lead mixed in petrol is works as :
Cooling agent
Anti knocking agent
Bleaching agent
The alkaline hydrolysis of ester is known as :
dehydrogenation
dehydration
esterification
saponification
The degree of ionization of 0.4 M acetic acid will be :
Haber process is used for production of which of the following :
The value of phenolphthalein is 9.1 and the pH range is 8-10. In which of the following titrations it can be used as an indicator :
NaOH and HCI
Number of electrons in a one molecule of :
Which of the following species shows the maximum magnetic moment :
When is heated with dilute it gives :
pbO and
pbO
C-H bond length is least in :
Ethylene
The minimum nos. of carbon atoms in ketones which will show chain isomerism will be :
Seven
four
six
five
Which of the following organic compound could not be dried by anhydrous :
ethanol
chloroform
ethyl acetate
Which of the following compound forms white precipitate with bromine water :
Gypsum is :
Which of the following carbonium ion is most stable :
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