Chemistry
An organic compound containing C, H and O has 49.3% carbon, 6.84% hydrogen, 43.86% oxygen and its vapour density is 73. What will be the molecular formula of the compound?
Related Questions
(a) State whether the following statements are True or False. Justify your answer.
(1) Fluorine is most electronegative element.
(2) The size of potassium atom is greater than the size of sodium atom.
(b) Calculate the number of moles in 9 grams of water.
Fill in the blanks selecting the appropriate word from the given choice.
(a) Formation of …………… (NH4+, NH3) involves ammonia molecule and hydrogen ion.
(b) Hydroxyl ion or hydroxide ion is formed when one …………… [H+, OH-] ion is removed from water molecule.
(c) Hydrogen needs one electron to complete its …………… [singlet, duplet].
Name the functional group in the following organic compounds.
(a) C2H5CHO
(b) H3C-CH2-CH=CH-CH3
(a) Mayank extracts aluminium by electrolytic process. Answer the following questions with respect to the electrolytic process in the extraction of aluminium.
(1) A compound which is added to lower the fusion temperature of the electrolytic bath.
(2) Explain, why powdered coke is sprinkled over the electrolytic mixture?
(b) The atomic number of an element is 16. To which group will this element belong to?