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Physical Change

All of the fo...

Question

All of the following involve a chemical change at a particular temperature except :

the formation of HCl from

H_{2}

and

C l_{2}

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the color change when NO is exposed to air

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the formation of steam from buring

H_{2}

and

C O_{2}

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the solidification of vegetable oil at low temperatures

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the odor of

N H_{3}

when

N H_{4} C l

is rubbed together with

C a (O H)_{2}

powder.

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Solution

The correct option is E the solidification of vegetable oil at low temperatures
All of the following involve a chemical change at a particular temperature except the solidification of vegetable oil at low temperatures.
It involves physical change. The physical state changes from liquid to solid.

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Similar questions

What visible change is observed when $C O_{2}$ is passed through lime water and that change is due to the formation of which compound?

h_{2} + {C l}_{2} \to 2 H C l

C a {C O}_{3} + 2 H C l \to C a {C l}_{2} + {C O}_{2} + H_{2} O

H C l

C a {C O}_{3}

Formation of Nh4Cl from NH3 and HCl is a synthesis reaction.comment on the statement.

M n O_{2} + H C l \to M n C l_{2} + C l_{2} + H_{2} O

N H_{4} C l + C a (O H)_{2} \to N H_{3} + C a C l_{2} + H_{2} O

B a C l_{2} + A l_{2} (S O_{4})_{3} \to B a S O_{4} + A l C l_{3}

N a A l O_{2} + H_{2} O + C O_{2} \to A l H_{3} + N a_{2} C O_{3}

N H_{3} + O_{2} \to N O + H_{2} O

Z n + H N O_{3} \to Z n (N O_{3})_{2} + N O_{2} + H_{2} O

H_{2} S + O_{2} \to H_{2} O + S O_{2}

P b O + C \to P b + C O_{2}

B a C l_{2} + H_{2} S O_{4} \to B a S O_{4} + H C l

C H_{4} + O_{2} \to C O_{2} + H_{2} O

S_{H_{2}}^{\circ} = 131 J K^{- 1} m o l^{- 1} S_{C l_{2}}^{\circ} = 223 J K^{- 1} m o l^{- 1} a n d S_{H C l}^{\circ} = 187 J K^{- 1} m o l^{- 1}

1

H C l (g)

H_{2} (g)

C l_{2} (g)

H C l

H_{2} + C l_{2} \to 2 H C l

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