Question 2 :
A solid compound &#34;A&#34; consists of simple ions.<br/>Nature of the bond present in A will be:

Question 3 :
We have $CuSO_4$ solutions (blue) in two&#160;beakers A and B. In beaker A we add Ag pieces and in B we add&#160;Zn&#160;pieces. What will happen&#160;in A if :<br/>1.&#160;$Cu^{2+}$ is reduced to Cu<br/>2. no reaction.

Question 4 :
Assertion: Zinc is used in the galvanization of iron. Reason: Its coating on iron articles increases their life by protecting them from rusting.

Question 8 :
Heating of concentrated ore in absence of air, for conversion into oxide ore, is known as ____.<br/>

Question 11 :
In CaF$_2$, the number of electron(s) transferred from calcium to fluorine atoms are_____.

Question 12 :
During extraction of metals, electrolytic refining is used to obtain pure metals.&#160;Material which will be used as anode, for refining of silver metal by this process, is:<br/>

Question 16 :
The process to heat the ore in the presence of excess supply of air below its melting point is called as ________.<br/>

Question 17 :
The second most abundant metal present in the crust of the earth is :

Question 18 :
Assertion: Ionic compounds are bad conductors of electricity. Reason: In ionic compounds mobile ions exists.

Question 19 :
Galvanisation is a method of protecting iron from rusting, by coating&#160;with a thin layer of:<br/>

Question 20 :
Which of the following metals exist in their native state in nature?<br/>(i) Ca<br/>(ii) Au<br/>(iii) Zn<br/>(iv) Ag<br/>

Question 24 :
During the formation of ionic bond ________transfer takes place from one atom to the others.

Question 26 :
$Li$, $K$, $Ca$, $Na$, $Mg$, $Al$, $Zn$, $Fe$, $Pb$, $Cu$, $Hg$, $Ag$<br/>Which metal will displace hydrogen from acids but not water?

Question 30 :
A magnesium ion has a net positive charge while the magnesium atom has __________.&#160;

Question 33 :
What are the conditions for a species to act as a donor and an acceptor during dative bond formation?

Question 35 :
Which among the following metals is employed to provide cathodic protection to iron?

Question 39 :
Which of the following is a correct property for solid magnesium carbonate?

Question 41 :
Which one of the methods given in column- I is applied for the extraction of the metal given in column II:<br/><blockquote><table class="wysiwyg-table"> <tbody><tr> <td><b>Column -I</b></td> <td><b>Column - II</b></td> </tr> <tr> <td>(A)&#160;Electrolytic reduction</td> <td>(i)&#160;Aluminium</td> </tr> <tr> <td>(B) Reduction with carbon</td> <td>(ii)&#160;Zinc</td> </tr> <tr> <td>(C) Reduction with aluminium</td> <td>(iii)&#160;Sodium</td> </tr> <tr> <td>&#160;</td> <td>(iv)&#160;Iron</td> </tr> <tr> <td>&#160;</td> <td>(v)&#160;Manganese</td> </tr> <tr> <td>&#160;</td> <td>(vi)&#160;Chromium</td> </tr></tbody></table></blockquote>

Question 42 :
In electrolytic refining, which one is the anode and which is cathode?

Question 43 :
&#160;Galvanizing is a process of coating iron with a&#160;metal to prevent it from rusting. The metal is :

Question 46 :
On the basis of following features identify the correct option:<br/>I. This metal is not obtained in free state.<br/>II. This metal is obtained by electrolysis of their chlorides&#160;in molten state.

Question 47 :
Coulomb's law is used to calculate the energy of an ion pair.

Question 48 :
Which one of them is more ionic $LiCl$ or $NaCl$ ?

Question 50 :
Most of the metals which occurs in native state in nature: