Question 2 :
Compounds with identical crystal structure and analogous chemical formula are called:

Question 3 :
Which type of bonding is responsible for the ability of some solid materials to conduct electricity?

Question 5 :
Statement: Covalent solids are good conductor of electricity.<br/>State whether the given statement is true or false

Question 6 :
Which of the following is an example of metallic crystal solid?

Question 9 :
In a cubic structure of compounds which is made from $X$ and $Y$, where $X$ atoms are at the corners of the cube and $Y$ at the face centres of the cube. The molecular formula of the compound is

Question 11 :
Assertion: Crystalline solids can cause X-rays to diffract. Reason: Interatomic distance in crystalline solids is of the order of $0.1$ nm.

Question 13 :
The mole fraction of solute in 10% (w/w) aqueous&#160;NaOH solution is:

Question 14 :
One kilogram of sea water sample contains $6\ mg$ of dissolved $O_{2}$. The concentration of $O_{2}$ in the sample in ppm is:

Question 15 :
An ideal gaseous mixture of ethane and ethene occupy $28L$ as STP. The mixture required $128g$ ${O}_{2}$ combustion, ,mole fraction of ethene in the mixture is:

Question 16 :
Hydrogen gas adsorbed on surface of platinum is an example of solid in gas solution.

Question 17 :
When $1.04 g$ of $BaCl_2$ is present in $105g$ of solution the concentration of solution is:

Question 18 :
What is the degree of hardness of a sample of water containing $24\ mg$ of $MgSO_{4}$ (mol. mass $120$) per kg of water?

Question 19 :
A candle is burnt in a beaker until it extinguishes itself. A sample of gaseous mixture in the beaker contains $6.08\times 10^{20}$ molecules of $N_2, 0.76\times 10^{20}$ molecules of $O_2$, and $0.50\times 10^{20}$ molecules of $CO_2$. The total pressure is 734 mm of Hg. The partial pressure of $O_2$ would be:

Question 20 :
The ppm strength of $CO_2(g)$ volume by volume (mL of $CO_2$ per $10^6$ mL of air) is:

Question 21 :
What is the mole fraction of the solute in a $1.00$ m aqueous solution?

Question 24 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Some of the batteries are rechargeable :</p><p class="wysiwyg-text-align-left">I : Dry cell battery</p><p class="wysiwyg-text-align-left">II : Lead-storage (acid) battery</p><p class="wysiwyg-text-align-left">III : Nickel-cadmium battery</p><p class="wysiwyg-text-align-left">IV : Lithium battery</p><p class="wysiwyg-text-align-left">V : Fuel cell</p><p>Select correct alternates :</p>

Question 25 :
<font color="#333333">State True or False.</font>In an electrode concentration cell, the cell reaction Zn(C$_1$) $\rightarrow$&#160;Zn(C$_2$)&#160;will be spontaneous if c$_1$ &#160;&gt; c$_2$ .

Question 26 :
The weights of various ions liberated by passing the same current through different electrolytes are in the ratio of their:

Question 27 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">The negative Zn pole of Daniel cell, sending a constant current through a circuit, decreases in mass by 0.13 g in 30 minutes. If the chemical equivalent of Zn and Cu and 32.5 and 31.5 respectively, the increase in the mass of the positive Cu pole in this time is :&#160;<br/></p>

Question 28 :
The&#160;standard EMF of quantity electrode is $0.699 V$. The EMF of the quinhydrone&#160;electrode dipped in a solution with pH = 10 is:

Question 31 :
Arrange following compounds according to their reactivity with alc. silver nitrate.

Question 32 :
Action of alcoholic $AgNO_3$ on chlorobenzene is similar to the action on:

Question 35 :
Which of the following statements is not correctly showing the trend of the properties mentioned ?

Question 36 :
Alcohols containing only up to ________________carbon atoms are completely miscible with water.

Question 37 :
Which of the following reactions can be used to prepare $\begin{matrix} &amp; OH &amp; \\ &amp; | &amp; \\ C{ H }_{ 3 }- &amp; C- &amp; { C }_{ 6 }{ H }_{ 5 } \\ &amp; | &amp; \\ &amp; { C }_{ 2 }{ H }_{ 5 } &amp; \end{matrix}$

Question 38 :
$0.037$g of an alcohol, $R-OH$ was added to $CH_3MgBr$ and the gas evolved measured $11.2$ mL at STP. The molecular mass of $R-OH$ will be?

Question 39 :
The general molecular formula, which represents the homologous series of alkanol is: