Veto q&a 7 Month22 (1)

@chemistry
2018
June
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Who proposed the Law of Mass Action?
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The functional group of Ethers (Alkoxy alkanes)?
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A. Guldberg and waage
Which theory predicts the possible shapes of the
molecules based on the number of electron pairs in
the valence shell of the central atom?
A. VSepr theory
The transition element (Metal) which shows maximum
number of oxidation states?
A. Manganese (+1 to +7)
Give the mass of proton?
A. 1.632 x10 -27 kg
The absolute weight of single atom of an element can
be calculated using?
A. Mole concept
Who proposed the “Law of Multiple Proportions”?
A. john Dalton
Proposer of Modern atomic theory?
A. john Dalton
Glycerides of higher Faty Acids are called?
A. oils and fats
The gas filled in Geiger counter tubes?
A. argon
How many carbon atoms are there in the Organic
Compound starting with the name ‘Non’?
A. C=9 atoms
What are Olefins?
A. alkenes (forming oil)
Which is the simplest carboxylic acid?
A. Methanoic acid (hcooh)
“The unwanted metallic rattled in internal combustion
Engines, when a mixture of petrol vapour and air is
ignited”, is?
A. knocking
Most commonly used antiknock compound?
A. tetra ethyl Lead (tea) [(c 2
h 5
) 4
pb]
As Octane number increases, knocking?
A. reduces
The product obtained by the action of iodine on ethyl
alcohol in the presence of alkali?
A. iodoform (chi 3
)
Ester with the smell of orange?
A. octyl acetate
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A. c-o-c
Monomer of Teflon?
A. tetrafluoroethylene
Phosphorous compound which has the smell of rotten
fish?
A. phosphane (ph 3
)
Study of poison?
A. toxicology
The element with highest melting point?
A. carbon
Half life of Francium?
A. 22 min
Fuel used in blast furnance?
A. coke
Hygroscopy is achieved through?
A. absorption
White powder which is used as a polish in carrom
board?
A. Boric acid
Structure of diborane?
A. Banana Structure
A mixture of 2 phases of water?
A. colloid
What is the colour of Cobalt Chloride?
A. Deep Blue
Most abundant Element on Earth crust?
A. oxygen
Gasohol is a mixture of?
A. Gasoline and alcohol
The ‘term’ element was coined by?
A. robert Boyle
Nuclear particle with mass of electron, but opposite
charge?
A. positron
Unit of measuring mass of atom?
A. atomic Mass unit (amu)
Dynamite was invented by?
A. alfred nobel
Most abundant compound on Earth’s surface?
A. h 2
o
Q&A Bonus
The Secretary of State for India when INC was formed - Lord cross
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