Class 10 Last 10 year Important Questions #01 | Carbon and Its Compounds Class 10 CBSE BOARD

Class 10 Last 10 year Important Questions #01 | Carbon and Its Compounds Class 10 CBSE BOARD #2piclasses #class10science #importantquestions #extraquestions #oswaalbooks #boardexam #cbseclass10 #Class10Last10yearImportantQuestions #CarbonanditscompoundsClass10CBSEBOARD Q2. An alkane has 11 carbon atoms arranged within ring structure as shown below. What is the molecular formula of the alkane? Q3. (i) Write the name and draw the structure of a saturated hydrocarbon with four carbon atoms. (ii) Write the number of single covalent bonds present on this compound. Q4. Consider the carbon compounds having following molecular formula : (i) C₃H₆ (ii) C₃H₈ (iii) C₄H₆ (iv) C₆H₆ (v) C₆H₁₂ (a) State the number of double covalent bonds present in C₃H₆. (b) Write the formula of first member of the homologous series to which the carbon compound C₄H₆ belongs (c) Which one of the above compounds forms ring structure of carbon atoms? (d) Identify, which of the above compounds, is a member of alkane series. Q5. The table shows the electronic structure of four elements. Element Electronic Structure P 2, 6 Q 2, 8, 1 R 2, 8, 7 S 2, 8, 8 (a) Identify which element (s) will form covalent bonds with carbon. (b) "Carbon reacts with an element in the above table to form several compounds." Given suitable reason. Q6. A carbon compound 'A' having melting point 156 K and boiling point 351 K, with molecular formula C₂H₆O is soluble in water in all proportions. (a) Identify 'A' and draw its electron dot structure. (b) Give the molecular formula of any two homologous of 'A'.