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Chemistry-

General

Easy

Question

In which of the following pairs of molecules/ions, both the species are not likely to exist?

$H_{2}^{+}, {H e}_{2}^{2 -}$
$H_{2}^{-}, {H e}_{2}^{2 -}$
$H_{2}^{2 +}, {H e}_{2}$
$H_{2}^{-}, {H e}_{2}^{2 +}$

The correct answer is: $H subscript 2 end subscript superscript 2 plus end superscript comma H e subscript 2 end subscript$

Related Questions to study

The hybridization of orbitals of Na to min $N O subscript 3 end subscript superscript minus end superscript$ $N O subscript 2 end subscript superscript plus end superscript comma$ and $N H subscript 4 end subscript superscript plus end superscript$ are respectively

The hybridization of orbitals of Na to min $N O subscript 3 end subscript superscript minus end superscript$ $N O subscript 2 end subscript superscript plus end superscript comma$ and $N H subscript 4 end subscript superscript plus end superscript$ are respectively

chemistry-General

Rational numbers
Is sum of 12.5 and 36.25 is a rational numbers?

Rational numbers
Is sum of 12.5 and 36.25 is a rational numbers?

ml to Litre
How many ml in 2 litres ?

ml to Litre
How many ml in 2 litres ?

parallel

Mean
The weights of 6 persons are 60, 49, 55, 65, 71, 66Kgs
Find the Mean weight

Mean
The weights of 6 persons are 60, 49, 55, 65, 71, 66Kgs
Find the Mean weight

congruent
In the figure, $stack A P with rightwards arrow on top$ and $Error converting from MathML to accessible text.$ are parallel and equal to each of the by which rule .
$increment$ AOP and $increment$ BOQ are congruent.

congruent
In the figure, $stack A P with rightwards arrow on top$ and $Error converting from MathML to accessible text.$ are parallel and equal to each of the by which rule .
$increment$ AOP and $increment$ BOQ are congruent.

Median
The marks of taied by a student in 5questions of a question paper are 8, 3, 10, 4, and 7
Find the Median

Median
The marks of taied by a student in 5questions of a question paper are 8, 3, 10, 4, and 7
Find the Median

parallel

Integer
A sub measure was situated 600 feet below the sea level. If it now reais by 200 feet, What is its new position.

Integer
A sub measure was situated 600 feet below the sea level. If it now reais by 200 feet, What is its new position.

Parallel and perpendicular
Find the slope of line parallel to AB if A = (-2, 3) , B= (2, 7)

Parallel and perpendicular
Find the slope of line parallel to AB if A = (-2, 3) , B= (2, 7)

Parallel and perpendicular Lines
Lines l paooes though points (-3, 4) and (-5, 0). Line l is perpendicular to line m . what is the slope of line m.

Parallel and perpendicular Lines
Lines l paooes though points (-3, 4) and (-5, 0). Line l is perpendicular to line m . what is the slope of line m.

parallel

Complementary angles
Find the measure of $angle$ ABD and $angle$ DBC

Complementary angles
Find the measure of $angle$ ABD and $angle$ DBC

Angles
Find the measure of the angle if this angle cuts out $1 over 12$ of the circles.

Angles
Find the measure of the angle if this angle cuts out $1 over 12$ of the circles.

Trigonometry
Given Sin A = $12 over 37$ , Find tan A

Trigonometry
Given Sin A = $12 over 37$ , Find tan A

parallel

Isosceles Triangles
Find the value of $angle$ XYZ

Isosceles Triangles
Find the value of $angle$ XYZ

Slope
Find the slope of line PQ in the graph.

Slope
Find the slope of line PQ in the graph.

Quadrilateral
Which set of shapes shows two Quadrilateral

Quadrilateral
Which set of shapes shows two Quadrilateral

parallel

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