Question 2 :
The structure of glycine (amino acid) is $H_{2}N-CH_{2}COO^{-}$ ($z$ witter ion). Select the correct statement:-

Question 3 :
Assertion: Ionic compounds are bad conductors of electricity. Reason: In ionic compounds mobile ions exists.

Question 7 :
Which of the following has different hybridisation from other three species :-

Question 14 :
Which of the following commonly forms ionic compounds as a $-1$ anion?

Question 16 :
All bond angles are exactly equal to <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7c9376f3020298ca137a9"> in

Question 17 :
Formal charge at oxygen atom I, II and III<br><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ef6d7d9180da34ba6ee438f"><br>

Question 21 :
Among <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7c966c2a2ae2953d94346"> , the <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7c9666f3020298ca137f7"> has highest melting point because:

Question 22 :
Atoms or group of atoms which are electrically charged are known as:

Question 24 :
In a crystal, the atoms are located at the positions of:

Question 25 :
<p>Some atoms attain&#160;their inert gas configuration by sharing of electrons. This method of attaining&#160;inert gas configuration is known as :</p>

Question 26 :
What are the conditions for a species to act as a donor and an acceptor during dative bond formation?

Question 28 :
The number of electron pair shared between two atoms of same or different elements during its formation of molecules is known as :

Question 31 :
If $Na^+$ ion is larger than $Mg^{2+}$&#160;ion, and $S ^{2-}$ion is larger than $Cl^{-}$ ion, which of the following will be less soluble in water?

Question 32 :
A number of ionic compounds, e.g $AgCl,Ca{F}_{2},Ba{SO}_{4}$ are insoluble in water. This is because:

Question 38 :
In the formation of the compound $AB$, atoms of $A$ lost one electron each while atoms of $B$ gained one electron each. Predict the two properties of $AB$.

Question 39 :
<div>The electronic configuration of elements A, B, C, D and E are as follows:<br/>A&#160;(2, 8, 7) &#160; &#160; &#160;&#160;B&#160;(2, 8, 1) &#160; &#160; &#160; C (2) &#160; &#160; &#160; &#160; &#160;D&#160;(2, 6) &#160; &#160; &#160; &#160;E(2, 8)<br/></div>The element which can donate electrons in a chemical reaction is:

Question 41 :
Potassium hexachloroplatinate ${K_2}\left[ {{P_2}iC{l_3}} \right]$ adopts anti-fluorite crystal structure. Which of the following ions adopts $fcc$ arrangement?

Question 42 :
What is the effect of more electronegative atom on the strength of ionic bond?

Question 45 :
A highly ionic compound is formed by the&#160;combination of elements belonging to:

Question 46 :
Which of the following is not a typical property of an ionic compound?

Question 47 :
$HCl$ gas is covalent and $NaCl$ is an ionic compound. This is because:

Question 48 :
The bond between atoms of two elements of atomic number $37$ and $53$ is:

Question 49 :
Which is the correct order of increasing ionic nature of following molecules?<br>I. $LiF$<br>II. $Cl{F}_{3}$<br>III. ${K}_{2}O$<br>IV. ${SO}_{2}$

Question 51 :
The high melting point and insolubility in organic solvents of sulphanilic acid are due to its ___________ structure.<br/>

Question 54 :
Assertion: Order of lattice energy for same halides are as $LiX &gt; NaX &gt; KX$. Reason: Size of alkaline-earth metal increases from $Li$ to $K$.

Question 56 :
Assertion: $LiF$ has more covalent character than $CsF$. Reason: Lattice energy of $CsF$ is less than that of $LiF$.

Question 58 :
Which of the following statement is correct for the attainment of stable electronic configuration in case of calcium atom?

Question 61 :
The element X reacting with chlorine forms a water soluble compound having high melting point. Element X is:

Question 64 :
The bond dissociation energy of {tex} \mathrm { B } - \mathrm { F } {/tex} in {tex} \mathrm { BF } _ { 1 } {/tex} is {tex} 646 \mathrm { kJ } \mathrm { mol } ^ { - 1 } {/tex} whereas that of {tex} \mathrm { C } - \mathrm { F } {/tex} in {tex} \mathrm { CF } _ { 4 } {/tex} is {tex} 515 {/tex} {tex} \mathrm { kJ } \mathrm { mol } ^ { - 1 } . {/tex} The correct reason for higher {tex} \mathrm { B } - \mathrm { F } {/tex} bond dissociation energy as compared to that of {tex} \mathrm { C } - \mathrm { F } {/tex} is

Question 65 :
The bond dissociation energy of {tex} \mathrm { B } - \mathrm { F } {/tex} in {tex} \mathrm { BF } _ { 3 } {/tex} is {tex} 646 \mathrm { kJ } \mathrm {\ mol } ^ { - 1 } {/tex} whereas that of {tex} \mathrm { C } - \mathrm { F } {/tex} in {tex} \mathrm { CF } _ { 4 } {/tex} is {tex} 515 \mathrm { kJ } \mathrm { \ mol } ^ { - 1 } . {/tex} The correct reason for higher {tex} \mathrm { B } - \mathrm { F } {/tex} bond dissociation energy as compared to that of {tex} \mathrm { C } - \mathrm { F } {/tex} is

Question 67 :
Amongst $LiCl$, $ BeCl_2,\ MgCl_2 $ and $RbCl$ the compounds with greatest and least ionic character, respectively are:

Question 68 :
Molecular {tex} \mathrm { AB } {/tex} has a bond length of {tex}1.61 \ {\text{Å}}{/tex} and a dipole moment of {tex}0.38 \mathrm D{/tex}. The fractional charge on each atom (absolute magnitude) is: {tex} ( \mathrm { e } _ { 0 } = 4.802 \times 10 ^ { - 10 } \text { esu) } \quad {/tex}

Question 69 :
In an ionic compound $A^+$ $X^-$ the degree of covalent bonding is greatest when :

Question 70 :
Which of the following family form negative ions in an ionic bond?