Description : Classify the following into acidic, basic, neutral and amphoteric oxides.
Last Answer : Magnesium oxide, carbon dioxide, carbon monoxide, sulphur dioxide, zinc oxide, calcium oxide. Acidic oxide –Sulphur dioxide, carbon dioxide Basic oxide – Magnesium oxide, Calcium oxide Neutral oxide – Carbon monoxide. Amphoteric oxide – Zinc oxide.
Description : Classify Following oxides as Neutral, Acidic, Basic, and Amphoteric?
Last Answer : CO - neutral Sio2-acidic Pbo2-amphoteric
Description : The nature of calcium phosphate present in tooth enamel is (a)Basic (b)Acidic (c ) Neutral (d) Amphoteric
Last Answer : (a)Basic
Description : The chemical behaviour of morphine alkaloid is (A) acidic (B)Basic (C) neutral (D) amphoteric
Last Answer : (B)Basic
Description : Study the following table and choose the correct option: Salt - Parent Acid - Parent Base - Nature of Salt (a) Soidum Chloride - HCI - NaOH - Basic (b) Sodium Carbonate - H2CO3 - NaOH - Neutral (c) Sodium Sulphate - H2SO4 - NaOH - Acidic (d) Sodium Acetate - CH3COOH - NaOH - Basic
Last Answer : Answer: (d) Sodium Acetate - CH3COOH - NaOH - Basic
Description : Generally metallic oxides are basic and non-metallic are acidic in nature. Solution of which of the following oxides in water will change the colour of blue litmus to red? a)sulphur dioxide b)Magnesium oxide c)iron oxide d)copper oxide
Last Answer : a)sulphur dioxide
Description : Acids react with bases to form which of the following? Do they form: w) salt and acidic anhydride x) water and basic anhydride y) basic anhydride and salt z) salt and water
Last Answer : ANSWER: D -- SALT AND WATER
Description : Amphoteric substances: w) act as either bases or acids x) precipatate from aqueous solutions y) salt out of basic solutions z) form emulsions in oils
Last Answer : ANSWER: W -- ACT AS EITHER BASES OR ACIDS
Description : (3) Oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of oxides of Sulfur and Nitrogen (Sulfur Dioxide and Nitrogen Oxide), which react with the water molecules in the ... The emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) result from fossil fuel combustion.
Last Answer : (3) live wire and the neutral wire Explanation: Three wires enter most homes from the power pole-two "hot" wires and a third "neutral" wire. Each hot wire provides 120- volt current for ... the main switch is put off because the electric circuit (the path where the electricity travels) gets opened.
Description : (2) oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of sulfur dioxide and nitrogen oxides, which react with the water molecules in the atmosphere to produce acids.
Last Answer : Neuron is - (1) Fundamental unit of energy (2) Particle released in radioactive emission (3) Antiparbcle of neutron (4) Fundamental unit of nervous system
Description : What are amphoteric oxides?
Last Answer : Oxides of zinc and aluminium are called amphoteric oxides.
Description : What are amphoteric oxides? Choose the amphoteric oxides from amongst the following oxides: Na2O, ZnO, Al2O3, CO2, H2O -Chemistry
Last Answer : Those oxides which reacts with acids as well as bases to produce salts and water are called amphoteric oxides, e.g. Na2O, ZnO, are amphoteric oxides among given oxides.
Description : Which of the following oxides is amphoteric in nature ?
Last Answer : Which of the following oxides is amphoteric in nature ? A. `N_(2)O_(3)` B. `P_(4)O_(6)` C. `Sb_(4)O_(5)` D. `Bi_(2)O_(3)`
Description : Which of the following chemical reactions does not lead to formation of a salt? w) Reaction of salts with acids. x) The reaction of base anhydrides with acid anhydrides. y) Action of water on oxides of nonmetals. z) Reaction of acid with base.
Last Answer : ANSWER: Y -- ACTION OF WATER ON OXIDES OF NONMETALS. (If water reacts with oxides of nonmetals, an acid is formed.)
Description : Members of which of the following classes of compounds generally produce acidic solutions when dissolved in water? w) metal oxides x) nonmetal oxides y) alcohols z) aldehydes
Last Answer : ANSWER: X -- NONMETAL OXIDES
Description : Ethereal sulphate is synthesized from the _________ amino acid. (A) Neutral (B) Acidic (C) Basic (D) Sulphur containing
Last Answer : Answer : D
Description : You are provided with magnesium ribbon and sulpher powder. Explain with the help of an activity that metal oxides are basic and non-metal oxide are acidic in nature. -Chemistry
Last Answer : Aim: To test the nature of oxides formed by metals and non-metals. Materials Required: Sulphur powder, Mg ribbon, water, blue litmus paper, red litmus paper. Procedure: 1.Take magnesium ribbon ... the metallic oxides are basic in nature whereas most of the non-metallic oxides are acidic in nature.
Description : Which of the following compounds on thermal decomposition yields as basic as well as acidic oxides ?
Last Answer : Which of the following compounds on thermal decomposition yields as basic as well as acidic oxides ? A. `Ca(OH)_(2) ... C. `K_(2)CO_(3)` D. `MgCO_(3)`
Description : What are the major constituents of typical fly ash particles generated from the combustion of coal? w) acidic and basic oxides x) trace elements y) unburned carbon z) sulfates and phosphates
Last Answer : ANSWER: W -- ACIDIC AND BASIC OXIDES
Description : Metallic oxide like MgO reacts with water to form a _______. a)base b)acid c)salt d)water
Last Answer : a)base
Description : If a material has the capacity to behave either as an acid or a base it is said to be: w) amorphous x) amphoteric y) anhydrous z) aklaline
Last Answer : ANSWER: X -- AMPHOTERIC
Description : How is the acidic , basic character of acids and bases varies with respect to neutral water . Show these variations on the PH scale.
Last Answer : Ans: The PH of neutral water is 7 ,As the PH of solution deceases from 7 the acid characteristic of the solution increase so the acids having values 1 and 2 are strong acids and when the ... 7 the basic characteristic of the solution increase so the acids having values 11and 12 are strong bases.
Description : When CO2 (carbon dioxide) is dissolved in water, i yields a solution that: a) has acidic properties b) has basic properties c) is neutral
Last Answer : ANSWER: A -- HAS ACIDIC PROPERTIES
Description : Baking soda is(a) acidic (b) basic (c) neutral (d) buffer
Last Answer : (b) basic
Description : Maximum enzyme activity is observed at (A) Acidic pH (B) Neutral pH (C) Basic pH (D) Optimum pH
Description : The third active process for amino acids transport involves (A) Acidic amino acids (B) Basic amino acids (C) Neutral amino acids (D) Sulphur containing amino acids
Last Answer : Answer : C
Description : Honey is (a) alkaline (b) basic after some days (c) acidic (d) neutral
Last Answer : (c) acidic
Description : Fire clay is __________ refractory material. (A) A basic (B) An acidic (C) A neutral (D) Not a
Last Answer : (B) An acidic
Description : pH value between 6.5-7.5 makes the soil (1) Basic (2) Neutral (3) Acidic (4) None of these
Last Answer : None of these
Description : (a) What are groups' and periods' in the periodic table'? (b) Two elements M and N belong to group I and II respectively and are in the same period of the periodic ... Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science
Last Answer : (a) The vertical columns in the periodic table are called groups'. The horizontal rows in the periodic table are called periods'. (b) M' and N' belong to same period but group I ... oxides. Valency goes on increasing first and then decreases. MCI, NCI2 are molecular formulae of their chlorides.
Last Answer : Alkali reacts with acid to produce salt and water
Description : Which of the following compounds will react with Tollens' reagent to give metallic silver? (a) Formic acid (b) Ethyl alcohol (c) Acetic acid (d) Acetone
Last Answer : Formic acid
Description : Why normal rain is slightly acidic? A. due to presence of dust in air B. carbon dioxide and water in clouds react to form carbonic acid (Answer) C. Ozone depletion D. All of these
Last Answer : B. carbon dioxide and water in clouds react to form carbonic acid (Answer)
Description : The amino acid exist as Zwitter ions when they are in (A) solid state (B) acidic solution (C) alkaline solution (D) neutral solution
Description : Number of acidic oxides among the following is: (a) `N_(2)O` (b) `NO` (c) `N_(2)O_(3)` (d) `N_(2)O_(4)` (e) `N_(2)O_(5)` (f) `P_(4)O_(6)` (g) `P_(4)O_
Last Answer : Number of acidic oxides among the following is: (a) `N_(2)O` (b) `NO` (c) `N_(2)O_(3)` (d) `N_(2)O_(4)` (e ... (h) `SO_(3)` (i) `B_(2)O_(3)` (j) `CO`
Description : How many of the following properties increase down the group for nitrogen family (a) Atomic size (b) Acidic character of oxides (c) Boiling point of h
Last Answer : How many of the following properties increase down the group for nitrogen family (a) Atomic ... Metallic character (g) Basic character of hydrides
Description : Which of the following oxides is the most acidic?
Last Answer : Which of the following oxides is the most acidic? A. `N_(2)O_(5)` B. `P_(2)O_(5)` C. `As_(2)O_(5)` D. `Ab_(2)O_(5)`
Description : Compare the following giving reasons Acidic nature of oxides: `CaO, CO, CO_(2),N_(2)O_(5),SO_(3)`
Last Answer : Compare the following giving reasons Acidic nature of oxides: `CaO, CO, CO_(2),N_(2)O_(5),SO_(3)`
Description : State true or false. Correct the false statement. A. The acidic nature of oxides of group 13 increases down the graph.
Last Answer : State true or false. Correct the false statement. A. The acidic nature of oxides of group 13 ... catenation is much higher for C than for Si.
Description : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on
Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid- ... . `H_(2)O` D. `CO_(2)`
Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their ... P_(2)O_(5)` D. `FeO, CuO`
Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their ... `Mn_(3)O_(4),N_(2)O_(5)`
Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their ... C. CO,NO D. `Na_(2),CaO`
Last Answer : The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid- ... . `N_(2)O, C_(3)O_(2)`
Description : Pick out the wrong statement pertaining to nitric acid. (A) About 90% of nitric acid is manufactured by Ostwald's process (B) It is a strong mono basic acid which reacts with almost all the ... (mainly NO2 ) (D) Arc process of nitric acid manufacture is economical as compared to Ostwald's process
Last Answer : (D) Arc process of nitric acid manufacture is economical as compared to Ostwald's process
Description : Following are neutral oxides except :
Last Answer : Following are neutral oxides except : A. NO B. `N_(2)O` C. `CO` D. `NO_(2)`