Answer: The correct answer is 3.
Explanation:
Ionic bond is defined as the bond formed when there is complete transfer of electrons from one atom to another atom. Example: NaCl
Covalent bond is defined as the bond formed when there is sharing of electrons between two atoms. The atom which takes the shared pair of electron towards itself is known as electronegative atom. Example: HCl
Dependency of electronegativity difference on ionic and covalent polar bond:
If the electronegativity difference is greater than 0 and less than 2.0, then the bond is covalent polar in nature and it shares the electrons.
And if the electronegativity difference is 2.0 or greater, then the bond is ionic polar in nature and the electrons are transferred from one atom to another.
As, the electronegativity difference given is 0.4, so the bond will be covalent and sharing of electrons will be there.
Answer: will not occur.
Explanation:
A single replacement reaction is one in which a more reactive element displaces a less reactive element from its salt solution. Thus one element should be different from another element.
A general single displacement reaction can be represented as :
a)
Flourine is more reactive than chlorine and hence this reaction cannot occur.
b)
Sodium is more reactive than zinc and hence the reaction will occur.
c)
Iron is more reactive than copper and hence the reaction will occur.
d)
Magnesium is more reactive than hydrogen and hence the reaction will occur.
Answer:
-Unknown
Explanation:
Questions is not seen properly bro
Answer:
A) 3.5 ppm
Explanation:
The signal still retains it position at 3.5ppm. This is because change in frequency of the spectrometer does not change the chemical shift values. It only changes the intensity of the signal.
As a rule of thumb; higher frequency, better resolution in NMR.