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Standard XII

Chemistry

Anomalous Behavior of Lithium Halogens

What is the c...

Question

What is the correct formula for lithium fluoride?

L i F

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{L i}_{2} F_{2}

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{L i}_{3} F_{9}

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L i F_{7}

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{L i}_{7} F_{19}

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Solution

The correct option is A $L i F$
$L i F$ is the correct formula for lithium fluoride. $L i$ has a +1 charge and $F$ has a -1 charge so, when they come together, to form $L i F$ having an ionic bond.

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Similar questions

Q. A crystal of

L i F

(lithium fluoride) is BEST described by which of the following statements?

Q. A

15.0 g

sample of lithium is reacted with

15.0 g

of fluorine to form lithium fluoride:

2 L i + F_{2} \to 2 L i F

After the reaction is complete, what will be present?

The solubility of metal halides depends on their nature, lattice enthalpy and hydration enthalpy of the individual ions. Amongst flurides of alkali metals, the lowest solubility of LiF in water is due to
(a) Ionic nature fo lithium fluoride
(b) high lattice enthalpy
(c) high hydration enthalpy for lithium ion
(d) low ionisation enthalpy of lithium atom

Q. Find the binding energy per nucleon for lithium nucleus

_{3} {L i}^{7}

Take mass of

_{3} {L i}^{7} = 7 u

, mass of proton

= 1.007825 u

and mass of neutron

= 1.008665 u

Take

1 u = 931.5 M e V

Q. What coefficient is needed for fluorine to balance the following equation?

L i + F_{2} \to L i F

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What is the correct formula for lithium fluoride?

The correct option is A LiFLiF is the correct formula for lithium fluoride. Li has a +1 charge and F has a -1 charge so, when they come together, to form LiF having an ionic bond.

The correct option is A $L i F$
$L i F$ is the correct formula for lithium fluoride. $L i$ has a +1 charge and $F$ has a -1 charge so, when they come together, to form $L i F$ having an ionic bond.