Chemistry-
General
Easy
Question
Choose the false statement about deuterium :
- It is an isotope to hydrogen
- It contains [(1e–)+(1p+)+(1(n))]
- If contains only[1(p+)+1(n)]
- D2O is called the heavy water
The correct answer is: If contains only[1(p+)+1(n)]
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Select isoelectronic set:
a) Na+, H3O+,NH4+
b)CO-23 ,NO3,HCO3
c)P-3 ,HCl,C2H6,PH3
d)N-3 ,O ,F
Select isoelectronic set:
a) Na+, H3O+,NH4+
b)CO-23 ,NO3,HCO3
c)P-3 ,HCl,C2H6,PH3
d)N-3 ,O ,F
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No. of all sub shells of n+ι=7 is -
No. of all sub shells of n+ι=7 is -
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The atom A,B,C have the configuration A→[Z(90)+n(146)],B→[Z(92)+n(146)] C→[Z(90)+n(148)] so that:
a)A and C-Isotones
b)A and C-Isotopes
c)A and C-Isobars
d)B and C-Isobars
e)B and C–Isobars The wrong statement’s are:
The atom A,B,C have the configuration A→[Z(90)+n(146)],B→[Z(92)+n(146)] C→[Z(90)+n(148)] so that:
a)A and C-Isotones
b)A and C-Isotopes
c)A and C-Isobars
d)B and C-Isobars
e)B and C–Isobars The wrong statement’s are:
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Bundle of His is a network of
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Association of m-RNA with several ribosomes is called -
Association of m-RNA with several ribosomes is called -
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The electronic configuration of element when just above the element with atomic number 43 the same periodic group is:
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Material exchange through nucleopores is faciliate by -
Material exchange through nucleopores is faciliate by -
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What is the electronic configuration of an element in its first excited state which is isoelectronic withO2
What is the electronic configuration of an element in its first excited state which is isoelectronic withO2
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4s2 is the configuration of the outermost orbital of an element. Its atomic umber would be:
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A transition metal ‘X’ has a configuration [Ar] 3d5 its+3oxidationstate.Itsatomic number is-
A transition metal ‘X’ has a configuration [Ar] 3d5 its+3oxidationstate.Itsatomic number is-
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Electronic configuration 
has violated:
Electronic configuration has violated:
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36Kr has the electron configuration (18Ar) 4s2 3d10 4p6.The39thelectronwillgo into which one of the following sub-levels:
36Kr has the electron configuration (18Ar) 4s2 3d10 4p6.The39thelectronwillgo into which one of the following sub-levels:
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The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B),(C). and (D) Select the part correctly matched with its function.
The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B),(C). and (D) Select the part correctly matched with its function.
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n, l and m values of an electron in 3pyorbital are:
n, l and m values of an electron in 3pyorbital are:
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If l=3 then type and number of orbital is:
If l=3 then type and number of orbital is:
chemistry-General
