DSSSB TGT Carbon and its Compounds — practice questions
75 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice DSSSB TGT Carbon and its Compounds in the app →Carbon achieves a stable configuration by:The valency of carbon is:The ability of carbon to form long chains and rings by bonding with other carbon atoms is called:Hydrocarbons in which carbon atoms are joined only by single bonds are said to be:Compounds having the same molecular formula but different structures are called:A series of compounds in which successive members differ by a –CH₂– unit is called a:The functional group present in alcohols is:The functional group present in carboxylic acids is:The common name of ethanoic acid, a dilute solution of which is called vinegar, is:The reaction of an alcohol with a carboxylic acid in the presence of an acid catalyst, forming a sweet-smellinSoaps are the sodium or potassium salts of:The cleansing action of soap is due to the formation of spherical aggregates called:The addition of hydrogen to an unsaturated hydrocarbon to form a saturated one uses a catalyst of:Carbon forms bonds by:In a covalent double bond, the number of electron pairs shared is:Diamond and graphite differ because they are:Why do most covalent compounds have low melting points?A compound with only single bonds between carbon atoms is called:The general formula for the alkane series is:Pentane and isopentane share the formula C₅H₁₂ but differ in their carbon arrangement. They are:The IUPAC name of CH₃CH₂OH is:Which of the following pairs are members of the same homologous series?The functional group –COOH represents:Combustion of a hydrocarbon in plenty of oxygen produces:In alkaline KMnO₄, ethanol is converted to:Hydrogenation of vegetable oil in the presence of nickel catalyst converts it to:Reaction of CH₄ with Cl₂ in sunlight to give CH₃Cl is an example of:A soap molecule cleans greasy clothes mainly because:Detergents work better than soaps in hard water because:How many valence electrons does a carbon atom have?Why does carbon form covalent rather than ionic bonds?Which is an allotrope of carbon?The general formula of an alkane is:Which functional group is present in ethanoic acid?Which property of carbon allows it to form long chains?What is the IUPAC name of CH3CH2OH?Which is the simplest aldehyde?The flame produced when a saturated hydrocarbon burns in plentiful air is:The chemical reaction where alcohol and carboxylic acid form a fruity-smelling ester is called:Diamond conducts heat well but does NOT conduct electricity because:Graphite is soft and a good conductor of electricity because:Which catalyst is used to add hydrogen across the double bond of an alkene?Why do soaps NOT work well in hard water?Which of the following is an unsaturated hydrocarbon?Why are the chemical properties of all members of a homologous series similar?Which of these reactions is a substitution reaction?Identify the product of the reaction: 2C2H5OH + 2Na ->How can ethanol be converted to ethene?Which is the bond pattern of nitrogen molecule N2?Which is NOT an allotrope of carbon?Esterification reaction is usually carried out in the presence of:How many isomers exist for the molecular formula C4H10?On reacting 50 mL ethanol with excess conc. H2SO4 at 443 K, the main product is:Why does graphite act as a lubricant?Soap molecules in water form micelles because:Identify the product of the reaction of ethanoic acid with sodium hydroxide:Why does ethanoic acid freeze in winter (called glacial acetic acid)?Which contains both saturated and unsaturated bonds?Which alkane is added to LPG to make it detectable through smell?A molecule of ammonia (NH₃) hasBuckminsterfullerene is an allotropic form ofOils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example oIn which of the following compounds, — OH is the functional group?The soap molecule has aWhich of the following is the correct representation of electron dot structure of nitrogen?Structural formula of ethyne isIdentify the unsaturated compounds from the following (i) Propane (ii) Propene (iii) Propyne (iv) ChloropropanChlorine reacts with saturated hydrocarbons at room temperature in thePentane has the molecular formula $\mathrm{C}_{5} \mathrm{H}_{12}$. It hasEthanol reacts with sodium and forms two products. These areVinegar is a solution ofThe correct electron dot structure of a water molecule isWhich of the following does not belong to the same homologous series?The name of the compound $\mathrm{CH}_3 - \mathrm{CH}_2 - \mathrm{CHO}$ isThe first member of alkyne homologous series is