Chapter 14 Environment Chemistry (पर्यावरणीय रसायन) पाठ के अन्तर्गत दिए गए प्रश्नोत्तर प्रश्न 1. पर्यावरणीय रसायन शास्त्र को परिभाषित कीजिए। उत्तर विज्ञान की वह शाखा जिसके अन्तर्गत पर्यावरणीय प्रदूषण, और पर्यावरण में होने वाली विभिन्न प्रकार की रासायनिक और प्रकाश...
Chapter 14 Environmental Chemistry Question 1. Define environmental chemistry. Answer: Environmental chemistry is the branch of science which deals with the chemical changes in the environment. It includes our surroundings such as air, water, soil, forests, sunlight...
Chapter 13 Hydrocarbons Question 1. How will you account for the formation of ethane during chlorination of methane ? Answer: The chlorination of methane proceeds by free radical mechanism. The methyl free radicals (CH3) are converted to ethane during chain...
Chapter 12 Organic Chemistry : Some Basic Principles and Techniques Question 1. What are the hybridised states of carbon atoms in the following compounds ? (1) CH2=C=O (2) CH3CH=CH2 (3) (CH3)2 C=O (4) CH=CH2 CN (5) C6H6 Answer: Question 2. Indicate sigma (σ)...
Chapter 11 The p-Block Elements Question 1. Discuss the pattern of variation in oxidation states of : (1) B to Tl (2) C to Pb. Answer: (1) B to Tl. The common oxidation states are +1 and +3. The stability of + 3 oxidation state decreases from B to Tl. + 1...