Description : Chemically, dry ice is (a) ice formed from pure distilled water (b) solid carbon dioxide (c) solid sulphur dioxide (d) ice kept at sub-zero temperatures
Last Answer : Ans:(b)
Description : Pick up the correct statement from the following: (A) Rusting is caused due to combined action of air, moisture and carbon dioxide (B) During rusting, first ferrous bicarbonates are formed (C) On further oxidation ferrous bicarbonates get converted to ferric bicarbonates (D) All the above
Last Answer : Answer: Option D
Description : Catenation is a property of the carbon atom which describes its ability to (a) bond with other carbon atoms (b) form double and triple bonds (c) exist in plant and animal form (d) form bonds in its ground state
Last Answer : bond with other carbon atoms
Description : What is the name of the compounds formed when calcium carbon and oxygen are combined?
Last Answer : The chemical formula of calcium carbonate is CaCO3.
Description : What formula would 2 nitrogen atoms 1 oxygen atom and amp 2 carbon atoms make up?
Last Answer : The formula would thus be C2N2O.
Description : What The double bond between carbon atom and two oxygen atoms has two characteristics what are they?
Last Answer : Four valence electrons are shared.Valence electrons are shared between oxygen atoms.
Description : What is the chemical formula for one carbon atom for every two oxygen atoms?
Last Answer : This molecule is carbon dioxide - CO2.
Description : Which of the following statements describes the first step in the mechanism of the aldol condensation? (a) An alpha hydrogen is abstracted by the base to form an enolate anion. (b) A nucleophilic base attacks ... by the base ion. (d) The alpha hydrogen is abstracted by an acid to the enolate anion.
Last Answer : An alpha hydrogen is abstracted by the base to form an enolate anion
Description : Ozone layer is formed due to reactions of : (1) oxygen and ultraviolet rays (2) carbon dioxide and layers of atmosphere (3) cosmic rays and layers of atmosphere (4) infrared rays and ultraviolet rays
Last Answer : (1) oxygen and ultraviolet rays Explanation: Ozone in the Earth's stratosphere is created by ultraviolet light striking ordinary oxygen molecules containing two oxygen atoms (O2), splitting them into ... (atomic oxygen). The atomic oxygen then combines with unbroken O2 to create ozone (O3).
Description : In Living organisms During respiration which of the following Products are not formed if oxygen is not available? (a) Carbon dioxide + Water (b) Carbon dioxide + Alcohol (c) Lactic acid + Alcohol (d) Carbon dioxide + Lactic Acid
Last Answer : Answer: (b) Carbon dioxide + Alcohol
Description : When vinegar and baking soda are mixed together, w gas is formed? w) oxygen x) nitrogen y) carbon dioxide z) hydrogen
Last Answer : ANSWER: Y -- CARBON DIOXIDE
Last Answer : oxygen and ultraviolet rays
Description : What is the name of the compound formed when potassium nitrogen and oxygen are combined?
Last Answer : The chemical formula of potassium nitrate is KNO3.
Description : In `SO_(2)` two oxygen atoms are linked to the sulpher atom through double bonds. The two `pi` bonds are
Last Answer : In `SO_(2)` two oxygen atoms are linked to the sulpher atom through double bonds. The two `pi` bonds are A. ... (pi)-p_(pi)` and one `p_(pi)-p_(pi)`
Description : Water contains (A) One hydrogen atom and one oxygen atom (B) Two hydrogen atoms and one oxygen atom (C) One hydrogen atom and two oxygen atoms D) Three hydrogen atoms and two oxygen atoms
Last Answer : Answer: Option B
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 : Hydrogen bonds are formed when a hydrogen atom is shared between two ____. a. molecules c. elements b. atoms d. neutrons
Last Answer : a. molecules
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 : How many C-13 atoms are present on average in a 1.8000 and times104-atom sample of carbon?
Description : how many hydrogen atoms can be bonded to one carbon atom?
Last Answer : 4
Description : For de novo synthesis of purine nucleotides, glycine provides (A) One nitrogen atom (B) One nitrogen and one carbon atom (C) Two carbon atoms (D) One nitrogen and two carbon atoms
Last Answer : Answer : D
Description : During each cycle of β-oxidation (A) One carbon atom is removed from the carboxyl end of the fatty acid (B) One carbon atom is removed from the methyl end of the fatty acid (C) Two carbon atoms ... carboxyl end of the fatty acid (D) Two carbon atoms are removed from the methyl end of the fatty acid
Last Answer : Answer : C
Description : Apart from tetrahedral geometry another possible geometry for CH4 is square planar with four hydrogen atoms at the corners of the square and the carbon atom at the centre.Explain why CH4 is not square planar?
Last Answer : Ans For square planar arrangement hybridization is dsp2 which is not possible with Carbon as it does not have d orbital with it
Description : Will carbon as an atom interact with other atoms to form ionic or covalent bonds?
Last Answer : Carbon as an atom interacts with other atoms to from covalent bonds.
Description : When the carbon atom is sp2 hybridized in a compound, it is bonded to (a) 2 other atoms (b) 4 other atoms (c) 3 other atoms (d) 5 other atoms
Last Answer : 3 other atoms
Description : which of the following accurately describes carbon atoms? -General Knowledge
Last Answer : Carbon atoms can bond to other carbon atoms. - accurately describes carbon atoms.
Description : Pick out the wrong statement. (A) Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate (B) Glass is decolorized during its manufacture by ... Na2O . CaO . 6SiO2 (D) Red color is imparted to glass by addition of arsenic oxide
Last Answer : (D) Red color is imparted to glass by addition of arsenic oxide
Description : What term best describes the area in an atom occupied by electrons?
Last Answer : Need answer
Description : What are two or more atoms combined together called?
Last Answer : This is a chemical compound (molecule).
Description : What kind of bond is formed when the attraction between the hydrogen atom in one water molecule and the oxygen molecule in another?
Description : How many carbon atoms are in a molecule of maltose if the has 12 oxygen atoms?
Last Answer : 12 carbons...
Description : How is oxygen and carbon dioxide transported in human beings ? -Biology
Last Answer : (i) Transport of oxygen : Haemoglobin present in the blood takes up the oxygen from the air in the lungs. It carries the oxygen to tissues which are deficient in oxygen before releasing it. (ii) ... the dissolved form in our blood plasma to lungs. Here it diffuses from blood to air in the lungs.
Description : If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring ? Justify your answer. -Science
Last Answer : When photosynthesis occurs during the day, the carbon dioxide released by plants by respiration is all used up and not released. Similarly, some of the oxygen produced during photosynthesis is used up in ... and taking in oxygen even during the day, it means that no photosynthesis is taking place.
Description : (a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it: Lung capillaries, Pulmonary artery to ... the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood? -Biology
Last Answer : (a) A schematic representation of transportation and exchange of oxygen and carbon dioxide during transportation of blood in human beings (b) It is necessary to separate oxygenated and deoxygenated ... . The separation of oxygenated and deoxygenated blood provides high oxygen supply to the organs.
Description : Which body system is responsible for carrying oxygen and carbon dioxide in and out of your body?
Last Answer : pulmonary circuit
Description : Carbon and oxygen combine to form two oxides, carbon monoxide and carbon dioxide in which the ratio of the weights of carbon and oxygen is respectivel
Last Answer : Carbon and oxygen combine to form two oxides, carbon monoxide and carbon dioxide in which the ... conservation of mass D. Law of constant proportions
Description : What structure does oxygen and carbon dioxide move in and out of a leaf through?
Description : What is the formula when calcium carbonate breaks down into carbon dioxide oxygen and calcium?
Description : In the cell which organelle has the function of using oxygen in the breakdown of glucose releasing energy and carbon dioxide?
Last Answer : The mitochondria.
Description : Is the correct equation for the reaction below. One molecule of propane gas reacts with five molecules of oxygen gas to form three molecules of carbon-dioxide gas and four molecules of water vapor?
Last Answer : Yes, it is correct.C3H8 + 5 O2 = 3 CO2 + 4 H2O
Description : How is the movement of oxygen different from the movement of carbon dioxide in the body?
Last Answer : because your mind is not working
Description : What moves the oxygen and carbon dioxide to and from cells?
Last Answer : The blood.
Description : What is. One molecule of propane gas reacts with five molecules of oxygen gas to form three molecules of carbon-dioxide gas and four molecules of water vapor.?
Last Answer : Propane gas is CH3CH2CH3Oxygen gas is O2Carbon dioxide gas is CO2Water vapor is H2OCH3CH2CH3(g) + 5O2(g) ==> 3CO2(g) + 4H2O(g)
Description : What are the two organ system involved in providing oxygen to cells and removing carbon dioxide from cells?
Description : What happens when you combine carbon dioxide and oxygen?
Last Answer : What is the answer ?
Description : What type of land animals are able to exchange exchange oxygen and carbon dioxide through their skin?
Last Answer : Amphibians
Description : What is the oxidation state of oxygen in carbon dioxide?
Last Answer : The oxidation state of oxygen in carbon dioxide is 2-.
Description : Who "People breathe in oxygen molecules from the air and exhale carbon dioxide molecules. Because of this, the air is full of carbon dioxide and oxygen mixed together. What is this an example of"?
Last Answer : Increase in entropy