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Chemistry
List of top Chemistry Questions
Cauliflower mosaic virus contains
NEET (UG) - 2001
NEET (UG)
Chemistry
Chemistry in Everyday Life
$P_4O_{10}$
is not used to dry
$NH_3$
gas because
KCET - 2001
KCET
Chemistry
p -Block Elements
The quantity of electricity required to liberate
$112\,cc$
of hydrogen at STP from acidified water is
KCET - 2001
KCET
Chemistry
Electrochemistry
Stand electrode potential are Fe+2/Fe Eº = – 0.44 Fe+3/Fe+2 Eº = 0.77 If Fe+2, Fe+3 and Fe block re kept together, then
NEET (UG) - 2001
NEET (UG)
Chemistry
Electrochemistry
The most convenient method to protect the bottom of ship made of iron is
NEET (UG) - 2001
NEET (UG)
Chemistry
Electrochemistry
Which one of the following metallic hydroxides does not dissolve in sodium hydroxide solution ?
KCET - 2001
KCET
Chemistry
GROUP 1 ELEMENTS
Molarity of liquid HCl if density of liq. HCl is 1.17 gm/cc
NEET (UG) - 2001
NEET (UG)
Chemistry
Solutions
In which of the following, bond angle is maximum?
NEET (UG) - 2001
NEET (UG)
Chemistry
Chemical bonding and molecular structure
In
$X - H ------Y ,X$
and
$ Y$
both are electronegative elements, then
NEET (UG) - 2001
NEET (UG)
Chemistry
Chemical bonding and molecular structure
Which of the following two are isostructural ?
NEET (UG) - 2001
NEET (UG)
Chemistry
Chemical bonding and molecular structure
Which of the following two species in the pair are isostructural
NEET (UG) - 2001
NEET (UG)
Chemistry
Chemical bonding and molecular structure
Main axis of a diatomic molecule is z, molecular orbital px and py overlaps to form, which of the following orbital
NEET (UG) - 2001
NEET (UG)
Chemistry
Chemical bonding and molecular structure
The following quantum numbers are possible for how many orbital(s) $n = 3$ ,$l = 2$ and $m = +2$ are possible ?
NEET (UG) - 2001
NEET (UG)
Chemistry
Structure of atom
Aqueous sodium hydroxide reacts with white phosphorus to form phosphine and
EAMCET - 2001
EAMCET
Chemistry
p -Block Elements
Which one of the following is an oxyacid ?
EAMCET - 2001
EAMCET
Chemistry
p -Block Elements
In the ground state, an element has 13 electrons in its ''M shell''. The element is
EAMCET - 2001
EAMCET
Chemistry
d block elements
At what temperature will the r.m.s. velocity of
$SO_2$
be the same as that of
$O_2$
at 303 K ?
KCET - 2001
KCET
Chemistry
States of matter
Hydrogen ion concentration of an aqueous solutionis
$1 \times 10^{-4} M$
. The solution is diluted with equal volume of water. Hydroxyl ion concentration of the resultant solution in terms of mol
$dm^{-3}$
is
KCET - 2001
KCET
Chemistry
Equilibrium
Percentage of Se in peroxidase anhydrous enzyme is 0.5% by weight (at. wt = 78.4) then minimum molecular weight of peroxidase anhydrous enzymes is
NEET (UG) - 2001
NEET (UG)
Chemistry
Some basic concepts of chemistry
Which one of the following is an incorrect statement ?
MP PMT - 2001
MP PMT
Chemistry
Classification of elements and periodicity in properties
The oxidation number of cobalt in
$K[Co(CN)_4]$
is
MP PMT - 2001
MP PMT
Chemistry
Oxidation Number
The unpleasant smell of carbylamine is obtained when chloroform and alcoholic KOH are heated with
KCET - 2001
KCET
Chemistry
Amines
For certain first order reaction m, 75% of the reaction complete in 30 min. How much time it require to complete 99.9% of the reaction?
KCET - 2001
KCET
Chemistry
Chemical Kinetics
Which one correctly matched
NEET (UG) - 2001
NEET (UG)
Chemistry
Some basic concepts of chemistry
Sp. vol. of cylinderical virus particle is 6.02 × 10^-2 cc/gm. Whose radius and length are 7 Å & 10Å respectively. If NA = 6.02 × 10^23. Find mol. wt. of virus
NEET (UG) - 2001
NEET (UG)
Chemistry
Some basic concepts of chemistry
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