Description : By which Carbon and hydrogen are estimated in organic compounds? -Do You Know?
Last Answer : The percentages of carbon and hydrogen in the compound are calculated from the masses of carbon dioxide and water. Estimation of carbon and hydrogen in an organic compound is based on their conversion to CO, and H20 respectively
Description : An organic compound ("X") is a disubstituted benzene containing 77.8% carbon and 7.4 % hydrogen. Heating an alkaline solution of "X" with chloroform g
Last Answer : An organic compound ("X") is a disubstituted benzene containing 77.8% carbon and 7.4 % hydrogen. Heating an alkaline ... "Z". "Z" is A. B. C. D.
Description : Carbon and hydrogen are normally detected by strongly heating the organic compound with
Last Answer : Carbon and hydrogen are normally detected by strongly heating the organic compound with A. FeO B. CaO C. CuO D. MnO
Description : What is the maximun number of atoms that a carbon atom can bond with in an organic compoud?
Last Answer : Feel Free to Answer
Description : Is a measure of the rate of degeneration of carbon 14 in organic materials.?
Last Answer : What is the answer ?
Description : What are the effects of organic carbon in farming?
Last Answer : Aeration, cleanliness, fertility, infiltration and percolation describe the effects of organic carbon in farming. Organic carbon is a measurable way for farmers to know the organic matter content in their ... , moisture, nutrient and organic residue movement and well-being of plant roots and shoots.
Description : Biological Oxygen Demand (BOD) is a measure of: a. Industrial wastes poured into water bodies b. Extent to which water is polluted with organic compounds c. Amount of carbon monoxide inseparably combined with haemoglobin d. Amount of oxygen needed by green plants during night
Last Answer : Ans: A
Description : Marsh gas, formed from decaying organic matter and in coal mines is (a) carbon dioxide (b) methane (c) ethane (d) carbon monoxide
Last Answer : Ans:(b)
Description : (3) They are not easily combustible Explanation: Typical organic compounds are combustible by nature as they contain carbon. Organic compounds mostly consist of carbon, hydrogen, halogen, and phosphorus.
Last Answer : Which of the process is known as nitrification? (1) Reaction of Nitrogen Monoxide with oxygen to form nitric acid (2) Reaction of nitrogen dioxide with water to form nitric acid (3) Conversion of ammonia to nitrites (4) Conversion of nitrite to nitric oxide
Description : (1) the action of ultraviolet rays on oxygen Explanation: The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO ) and volatile organic compounds (VOCs), such as xylene, ... violet rays. NOx, CO, and VOCs are called ozone precursors. CO + 2O2 + CO2 + O3
Last Answer : Water is not effective in extinguishing a fire caused by petrol because - (1) the flame is too hot for water to cool it down (2) water and petrol react chemically (3) water and petrol are ... (4) water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn
Description : Which element found in all organic compounds? (1) carbon (2) nitrogen (3) calcium (4) none of them
Last Answer : (1) carbon Explanation: Carbon is found in all organic matter, but NOT in inorganic matter organic means chemical compounds with carbon in them. In a more general sense, organic refers to living things.
Description : Pick up the incorrect statement from the following: A. The process of decomposing the organic matter under controlled anaerobic conditions, is called sludge digestion B. Sludge digestion is carried ... contain 75% carbon dioxide D. The gases produced in sludge digestion process, contain 75% methane
Last Answer : ANS: C
Description : By which Carbon and hydrogen are estimated in organic compounds?
Last Answer : Liebig’s method
Description : An organic compound contain 69% carbon and 4.8% hydrogen, the remaining being oxygen. Calculate the masses of carbon dioxide and water produced when 0.20g of this substance is subjected to complete combustion.
Last Answer : Calculation of mass of CO2 produced: Mass of compound =0.20g %C =12 x C 69=12*mass of CO2 formed*100/44*0.2 Mass of CO2 formed =69*44*.2/12*100 = 0.506g Similarly, % H =2* mass of H2Oformed*100/18* ... compound 4.8=2* mass of H2Oformed*100/18* 0.2 Mass of H2Oformed =4.8*18*0.2/2*100 =0.0864g
Description : Simplest binary organic compounds containing carbon and hydrogen only are called
Last Answer : hydrocarbons.
Description : Most of Nitrogen is used in the decomposition of __________ and thus plant shows deficiency symptoms : a. Amino acids b. Cellulose c. Carbon compounds d. Organic matter
Last Answer : Cellulose
Description : Proteins are most complex organic compounds, containing a. Carbon b. Hydrogen c. oxygen and nitrogen d. All of these
Last Answer : All of these
Description : Organic carbon is a measure of? A. Available N in soil B. Available P in soil C. Available K in soil D. Available Mg in soil
Last Answer : A. Available N in soil
Description : The main role of bacteria in the carbon cycle involves (a) chemosynthesis (b) digestion or breakdown of organic compounds (c) photosynthesis (d) assimilation of nitrogenous compounds.
Last Answer : (b) digestion or breakdown of organic compounds
Description : Organic matter = organic carbon x — a. 3.72 b. 5.72 c. 1.72 d. 7.72
Last Answer : c. 1.72
Description : Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)? (A) Lagooning (B) Activated carbon adsorption (C) Biological oxidation pond (D) Chemical coagulation
Last Answer : (B) Activated carbon adsorption
Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane
Last Answer : Benzene
Description : In stable organic compounds, carbon will always form (a) 2 bonds (b) 4 bonds (c) 3 bonds (d) 5 bonds
Last Answer : 4 bonds
Description : Microorganisms that use organic compounds as energy and carbon sources are a. Chemoheterotrophs. b. Chemoautotrophs. c. Photoautotrophs. d. Photoheterotrophs.
Last Answer : c. Photoautotrophs.
Description : Which one of the following pairs is matched correctly? a. Ions - covalent bonds b. Carbon - organic compounds c. Glucose - enzyme d. Thymine - amino acid
Last Answer : b. Carbon - organic compounds
Last Answer : Liebig's method
Description : Which of the following are among the few carbon containing compounds not classified as organic?
Last Answer : Cyanides
Description : If Organic sources of carcinogenic compounds in water persist even after chlorination, then what is the correct sequence among treatment processes listed below if all these are considered compulsory ? 1. Coagulation 2. Sedimentation 3. Filtration in ... c) 4- 2- 3- 1- 5 and 6 d) 1-5-2-3-4 and 6
Last Answer : d) 1-5-2-3-4 and 6
Description : Organic chemistry involves molecules that contain which element? a. carbon c. oxygen b. nitrogen d. calcium
Last Answer : a. carbon
Description : Which of the following materials is the chief source of natural organic compounds? w) petroleum x) coal y) natural gas z) carbon dioxide
Last Answer : ANSWER: W -- PETROLEUM
Description : Choose the incorrect statement pertaining to organic compounds (1) They have low melting and boiling points (2) They do not dissolve in water (3) They are not easily combustible (4) They contain mainly carbon and hydrogen
Last Answer : They are not easily combustible