In the given oxides of chromium, the oxide with higher ionic character and the oxide with higher basic nature respectively are: (i) `CrO` (ii) `CrO_(3

1 Answer

Answer :

In the given oxides of chromium, the oxide with higher ionic character and the oxide with higher basic nature ... ) and CrO_(3)` D. `CrO and CrO`

Related questions

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 : 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 : `Mn_(2)O_(7), CrO_(3),V_(2)O_(5)` are ____ oxides

Last Answer : `Mn_(2)O_(7), CrO_(3),V_(2)O_(5)` are ____ oxides A. Basic B. Acidic C. Neutral D. Amphoteric

Description : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_ ... Dissolving in `H_(2)O` D. Dissolving in dil,HCl

Description : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ... B. C and Al C. C in both D. Al in both

Description : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` P:FeCr_(2)O_(4)+NaOH+airto A+Fe_(2)O_(3)Q

Last Answer : `FeCr_(2)`(chromite ) is a good soure of chromium and its compounds like `Na_(2)CrO_(4),Na_(2)Cr_(2)O_(7)` ` ... D. `Na_(4)[Fe(OH)_(6)],H_(2)SO_(4)`

Description : Which one of the following statements concerning elements in the Periodic Table is correct? A Elements of the same group all have the same number of electrons in the outermost occupied electron shell. B ... (Group 17) are all gases at room temperature. E The Group 13 elements are all metals.

Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Description : Consider the oxides Li2O, CO2,B2O3. a. Which oxide would you expect to be the most basic?

Last Answer : Consider the oxides Li2O, CO2,B2O3. a. Which oxide would you expect to be the most basic? b ... acidic? c. Give the formula of an amphoteric oxide.

Description : What is the oxidation state of chromium in CrO?

Last Answer : The valence of chromium is 2 in CrO.

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.

Description : Balance given following half reaction for the unbalanced whole reaction : `CrO_(4)^(2-)rarrCrO_(2)^(-)_OH^(-)` is :

Last Answer : Balance given following half reaction for the unbalanced whole reaction : `CrO_(4)^(2-)rarrCrO_(2)^(-)_OH^(-)` ... O+6e^(-)rarr2CrO_(2)^(-1)+8OH^(-)`

Description : The characteristic bonds in nonmetal oxides are which of the following types? w) network x) covalent y) ionic z) coordinate covalent

Last Answer : ANSWER: X -- COVALENT

Description : What is Oxide ? Write the names of some oxides ?

Last Answer : Oxygen is a bi-element compound that chemically combines with other elements to form oxygen . Oxides can be acidic , alkaline , bipolar or neutral in nature. Oxides of metals are generally alkaline and oxides of ... . Potassium oxide ( K 2 O) 4. Phosphorus pentoxide ( P₄O₁₀) 5. Calcium oxide ( CaO)

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 : Which of the following oxides is not present in hematite iron ore? (A) Titanium oxide (B) Calcium oxide (C) Cobalt oxide (D) Manganese oxide

Last Answer : (C) Cobalt oxide

Description : Which of the following is an adsorbent for removal of nitrogen oxides from gas/air? (A) Active carbon (B) Silica gel (C) Bog iron (iron oxide) (D) Pulverised limestone

Last Answer : (B) Silica gel

Description : Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is (A) Alumina (B) Platinum (C) Vanadium pentoxide (D) Iron oxide

Last Answer : Option B

Description : Draw the basic block diagram of single trace CRO and describe the function of delay line.

Last Answer : Function of Delay line: This block is used to delay the signal for a period of time in the vertical section of CRT. The input signal is not applied directly to the vertical plates because the part ... when the delay time is not used. Therefore, the input signal is delayed by a period of time. 

Description : What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of `Ag_(2)CrO_(4) and CrO_(4)`-ion conce

Last Answer : What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of ... D. `5.9xx10^(-6)` moles per litre

Description : Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four oxygen atoms are involved in peroxide linkage.

Last Answer : Assertion :- Oxidation number of `Cr` in `CrO_(3)` is `+6`. Reason :- In `CrO_(5)`, four ... Reason is False. D. If both Assertion & Reason are False.

Description : What is the value of n in the following equation : `Cr(OH)_(4)^(-)+OH^(-) rarr CrO_(4)^(2-)+H_(2)O+n e`?

Last Answer : What is the value of n in the following equation : `Cr(OH)_(4)^(-)+OH^(-) rarr CrO_(4)^(2-)+H_(2)O+n e`? A. 3 B. 6 C. 5 D. 2

Description : What is true about CRO? A. CRO is the process of optimizing the site to increase the likelihood that visitors B. Conversion Rate is a key metric in e-commerce C. The higher the conversion rate, the better. D. All of the above

Last Answer : D. All of the above

Description : Statement -1:Aluminothermy is used for extraction of chromium from chromium oxide. Statement-2: Aluminium is reducing agent.

Last Answer : Statement -1:Aluminothermy is used for extraction of chromium from chromium oxide. Statement-2: Aluminium is ... -1 is false but Statement -2 is true

Description : To obtain chromium from chromic oxide `(Cr_(3)O_(3))` the method used is

Last Answer : To obtain chromium from chromic oxide `(Cr_(3)O_(3))` the method used is A. ... monoxide reduction C. Alumino thermic D. Electrolytic reduction

Description : The ‘IC’ chips used in computers are made of (a) chromium (b) iron oxide (c) alumina (d) silicon

Last Answer : Ans:(d)

Description : Adding which substance gives blue colour to glass? (1) Manganese oxide (2) Cobalt oxide (3) Chromium oxide (4) Iron oxide

Last Answer : (2) Cobalt oxide Explanation: Cobalt is the strongest of the coloring oxides, giving a range of blues in most glasses. It is such a powerful colorant that only a few parts per million is needed to produce a light blue color such as the shade used for certain bottled waters.

Description : The chip used in computers, is made of ______ (A) Silicon (B) Iron Oxide (C) Chromium (D) None of the Above

Last Answer : (A) Silicon

Description : Catalyst used in steam reforming of naphtha is (A) Bauxite (B) Cobalt (C) Nickel oxide on alumina support (D) Chromium

Last Answer : (C) Nickel oxide on alumina support

Description : Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass. (A) Chromium (B) Arsenic (C) Copper (D) Manganese

Last Answer : (C) Copper

Description : Stainless steel is welded with difficulty because of (A) Its high melting temperature (B) Chances of cracking (C) Oxide film formation (D) Chromium carbide formation

Last Answer : Option C

Description : Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Last Answer : Option A

Description : Which of the following materials are used in the manufacture of pig iron from iron ore? w) Limestone and carbon x) Calcium oxide and oxygen y) Chromium and nickel z) Oxygen and sulfur dioxide

Last Answer : ANSWER: W -- LIMESTONE AND CARBON

Description : Which of the following are alloying materials used the manufacture of stainless steel? w) Limestone and carbon x) Calcium oxide and oxygen y) Oxygen and sulfur dioxide z) Chromium and nickel

Last Answer : ANSWER: Z -- CHROMIUM AND NICKEL

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 : 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 : Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively (A) V2O5 & Cr2O3 . (B) Oxides of nitrogen & Cr2O3 (C) V2O5 on a porous carrier & oxides of nitrogen (D) Oxides of nitrogen & V2O5 on a porous carrier

Last Answer : (D) Oxides of nitrogen & V2O5 on a porous carrier

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 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 : 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 : Metal oxides are _______ in nature

Last Answer : Basic

Description : Give reason for the following: (a) Aluminium oxide is considered as an amphoteric oxide. (b) Ionic compounds conduct electricity in molten state. -Chemistry

Last Answer : a) Aluminium oxide reacts with both acids as well as bases.b) Ionic compounds in molten state conduct electricity. Explanation: a) An amphoteric oxide as one that shows chemical reactivity with ... ions are present in the liquid state. These free ions enable the solution to conduct electricity.

Description : Is iron(iii)oxide a molecular compound or ionic compound and gt?

Last Answer : Iron oxide is an ionic compound.

Description : Is lauramine oxide ionic or covalent?

Last Answer : Need answer

Description : Sodium chloride, potassium chloride, magnesium oxide are examples of molecules with (a) Covalent bonding (b) Ionic bonding (c) Metallic bonding (d) Hydrogen bonding

Last Answer : Ans:(b)

Description : The oxidation state of sulhur in `H_(2)SO_(5)` and chromium in `K_(2)Cr_(2)O_(7)` respectively is :-

Last Answer : The oxidation state of sulhur in `H_(2)SO_(5)` and chromium in `K_(2)Cr_(2)O_(7)` respectively is :- A. 8, 6 B. 4, 6 C. 8, 8 D. 6, 6

Description : 18-4-1 high speed steel contains 18%, 4% and 1% respectively of (A) Tungsten, vanadium and chromium (B) Tungsten, chromium and vanadium (C) Vanadium, chromium and tungsten (D) Chromium, tungsten and vanadium

Last Answer : (B) Tungsten, chromium and vanadium

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 : 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