Advertisements
Advertisements
प्रश्न
A saturated hydrocarbon has fifty hydrogen atom in its molecule. The number of carbon atoms in its molecule will be
(a) twenty five
(b) twenty four
(c) twenty six
(d) twenty seven
Advertisements
उत्तर
twenty four
Alkanes are saturated hydrocarbons that have the general formula CnH2n+2. According to the question, the number of hydrogen atoms is 50, i.e., 2n+2=50.
∴ n = 48/2 = 24
APPEARS IN
संबंधित प्रश्न
List three characteristic properties of covalent compounds.
Choose the correct answer from the options given below:
Which of the following is a common characteristic of a covalent compound?
1) high melting point
2) consists of molecules
3) always soluble in water
4) Conducts electricity when it is in the molten state
Write the electron-dot structure for the following molecule.
Cl2
Fill in the following blank with suitable word:
The form of carbon which is known as black lead is ...........
Why is graphite used for making dry cell electrodes but diamond is not?
The atomic numbers of four elements P, Q, R and S are 6, 10, 12 and 17 respectively. Which two elements can combine to form a covalent compound?
(a) P and R
(b) Q and S
(c) P and S
(d) R and S
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
Which of the following has a triple bond as well as single bonds?
(a) ethene
(b) methane
(c) ethyne
(d) nitrogen
Which of the following cannot exhibit isomerism?
(a) C4H10
(b) C5H12
(c) C3H8
(d) C6H14
Give the formulae of the chlorides of the elements X and Y having atomic numbers of 3 and 6 respectively. Will the properties of the two chlorides be similar or different? Explain your answer.
Taking hydrogen chloride and methane as examples, distinguish between a polar covalent bond and a non polar covalent bond.
Name a neutral covalent molecule which contains one lone pair of electrons.
Electrons are getting added to an element Y:
which electrode will Y migrate to during the process of electrolysis?
What are the term defined below?
A bond formed by share pair of electrons, each bonding atom contributing one electron to the pair.
Potassium (Atomic No. 19) and chlorine (Atomic No. 17) react to form a compound. On the basis of electronic concept, explain
(i) oxidation
(ii) reduction
(iii)oxidising agent
(iv)reducing agent
In the formation of electrovalent compounds, electrons are transferred from one element to another. How are electrons involved in the formation of a covalent compound?
In covalent bond formation, the sharing of ______ electrons takes place in their outermost shell.
It is observed that covalent compounds are had conductors of electricity. Give reason.
Carbon can neither form C4- cation nor C4 anion. Why?
The number of single and double bonds present in a molecule of benzene (C6H6) respectively, are ______.
