Chapter 4 Carbon and It's Compounds full explanation One shot / Chemistry Class 10

Assertion :- Oxidation number of Carbon in all it's compounds is +4 . Reason :- An element has a fixed oxidation state.

Carbon and oxygen form two compounds. Carbon content in one of them is 42.9% and in the others is 27.3%. The given data is in agreement with

A railway half ticket cost half the full fare but the reservation charges are the same on a half ticket as on a full ticket. One reserved first class ticket from the stations A to B costs Rs. 2530. Also, one reserved first class ticket and one reserved first class half ticket from stations A to B costs Rs. 3810. Find the full first class fare from stations A to B and also the reservation charges for a ticket.

A hydrocarbon (R) has six membered ring in which there is no unsaturation.Two alkyl group are attached to the ring adjacent to each other.One group has 3 carbon atoms with branching at 1^(st) carbon and another has 4 carbon atoms.The larger alkyl group has main chain of three carbon atoms of which second carbon is substituted. Correct IUPAC name of compound (R) is

A railway half ticket costs half the full fare and the reservation charge is the same on the half ticket as on full ticket. One reserved first class ticket from Mumbai to Ahmedabad costs rs216 and one full and one half reserved first class tickets cost rs 327 What is the basic first class full fare and what is the reservation charge?

Giving one example in each of the following cases, discuss briefly the role of coordination compounds in (i) extraction metallurgy of metals (ii) analytical chemistry

A carbon compound 'P' on heating with excess conc. H_(2)SO_(4) forms another carbon compound 'Q' which on addition of hydrogen in the presence of nickel catalyst forms a saturated carbon compound 'R'. One molecule of 'R' on combustion, forms two molecules of carbon dioxide and three molecules of water. Identify P, Q and R and write chemical equations for the reactions involved.

Assertion (A) : Carbon forms covalent compounds but lead dorms ionic compounds Reason (R) : carbon can lose four electrons to four C^(4+) ion but lead cannot .

A compound X consists of 4.8% carbon and 95.2% bromine by mass. Determine the empirical formula of this compound working correct to one decimal place (C = 12, Br = 80)

A class has 175 students. The following data shows the number of students obtaining one or more subjects. Mathematics 100, Physics 70, Chemistry 40, Mathematics and Physics 30, Mathematics and Chemistry 28, Physics and Chemistry 23, Mathematics, Physics and Chemistry 18. How many students have offered Mathematics alone (a) 35 (c) 60 (b) 48 (d) 22