Which compound shows hydrogen bonding ?
Which compound shows hydrogen bonding ?
C2H6 | |
CH3OCH3 | |
C2H5Cl | |
C2H5OH |
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Chemistry mcqs
Which compound is also known by the name of carbolic acid ?
Which compound is also known by the name of carbolic acid ?
C6H5OH | |
H3PO3 | |
H2CO3 | |
C2H2OH |
Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7 ?
Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7 ?
Toluene | |
n-propyl benzene | |
Ethyl benzene | |
All |
which Compound Destroy The OZONE ?
which Compound Destroy The OZONE ?
CH3COOH | |
None Of These | |
CFCs | |
BOTH A & B |
Which catalyst is used in contact process ?
Which catalyst is used in contact process ?
Ag2O | |
SO3 | |
Fe2O3 | |
V2O5 |
Which among the following is not a property of Ionic bond -----?
Which among the following is not a property of Ionic bond -----?
Gain of electrons | |
Transfer of electrons | |
Losing of electrons | |
Sharing of electrons |
Which allotropic form of phosphorous is the most stable ?
Which allotropic form of phosphorous is the most stable ?
red | |
Violet | |
White | |
black |
Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?
Which alkyl halide out of the following may follow both SN1 and SN2 mechanism ?
(CH3)3 C-CH2 – X | |
(CH3)3 C – X | |
(CH3)2 CH – X | |
CH3-X |
Which alkyl halide has the highest reactivity for a particular alkyl group ?
Which alkyl halide has the highest reactivity for a particular alkyl group ?
R-F | |
R-C | |
R-I | |
R-Br |
Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?
Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?
Tertiary alcohol | |
Secondary alcohol | |
Primary alcohol | |
All of above |
Which acid is the manufacture of synthetic rubber ?
Which acid is the manufacture of synthetic rubber ?
Benzoic acid | |
Formic acid | |
Acetic acid | |
Carbonic acid |
When water freezes at 0°C its density decreases due to--------?
When water freezes at 0°C its density decreases due to--------?
Empty space present in the structure of ice | |
Change of bond angles | |
Change of bond length | |
Cubic structure of ice |
When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?
When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?
1 mole of ethane | |
1 mole of butane | |
2 moles of butane | |
2 moles of ethane |
When the value of Kc is very small then------------?
When the value of Kc is very small then------------?
reaction is at start | |
product conc. Is maximum | |
reactant conc. Is minimum | |
reaction is completed |
When the reaction completes in more than one steps rate of reaction will be determined by--------?
When the reaction completes in more than one steps rate of reaction will be determined by--------?
All steps | |
Molecularity of the reaction | |
Slowest step | |
Fast step |
When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be----------?
When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be----------?
trigonal bipyramidal | |
tetrahedral | |
octahedral | |
square planar |
When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called---------?
When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called---------?
Orthor hombic | |
Rhombohedral | |
ABCABC (Cubic) | |
ABAB (hexagonal) |
When sulphuric acid is treated with ethanol sulphuric acid behaves like--------?
When sulphuric acid is treated with ethanol sulphuric acid behaves like--------?
a dehydrating agent | |
an acid | |
as sulphonating agent | |
an oxidizing agent |
When sparingly soluble salt is in equilibrium with molar concentration of its oppositely charged ion when the product is called---------?
When sparingly soluble salt is in equilibrium with molar concentration of its oppositely charged ion when the product is called---------?
dissociation constant for an acid | |
dissociation constant | |
common ion effect | |
solubility product |
When SO2 solution is passed over which of the following it turns green?
When SO2 solution is passed over which of the following it turns green?
P2O5 | |
K2Cr2O7 | |
H2SO4 | |
SO3 |
When phenol is heated with concentrated nitric acid the product is--------?
When phenol is heated with concentrated nitric acid the product is--------?
1 3 5 -trinitro benzene | |
p-nitrophenol | |
Picric acid | |
o-nitrophenol |
When one hydrogen atom of alkane is removed then it is called--------?
When one hydrogen atom of alkane is removed then it is called--------?
aldehyde | |
saturated hydrocarbon | |
alkyl | |
alkene |
When methl iodide and ethyl iodide are treated with sodium metal possible major products are obtained ?
When methl iodide and ethyl iodide are treated with sodium metal possible major products are obtained ?
2 | |
4 | |
3 | |
1 |
When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in-----------?
When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in-----------?
orbitals of d-subshell | |
orbitals of p-subshell | |
orbitals of f-subshell | |
both A & B |
When electrons collide with heavy metals than ------ are produced?
When electrons collide with heavy metals than ------ are produced?
Gamma-rays | |
X-rays | |
Alpha-rays | |
Beta-rays |