Question Text
Question 1 :
Which of the following is not an allotropic form of carbon?
Question 5 :
Statement I: Water is a polar molecule.<br/>Statement II:  Water has polar covalent bonds.<br/>
Question 6 :
Hydrocarbons are the organic compounds that contain the elements _______ and ________.
Question 7 :
How many carbon atoms are present in a molecule of nonane?
Question 11 :
The phenomenon of existence of an element in more than one physical form is called allotropy.<br/>
Question 12 :
<p class="MsoNormal">Temporary hardness can be removed by mixing water with slaked lime, this process is known as softening of water.</p>
Question 14 :
Observe the following pairs of organic compounds:<br/>(I) $C_{4}H_{9}OH$ and $C_{5}H_{11} OH$<br/>(II) $C_{7}H_{15}OH$ and $C_{5}H_{11} OH$<br/>(III) $C_{6}H_{13}OH$ and $C_{3}H_{7}OH$<br/>Which of these pairs is a homologous series according to increasing order of carbon atom?<br/>
Question 17 :
The carbon atoms in diamond are bonded to each other by: