Colour imparted to the Bunsen flame by strontium salt is (1) bluish green (2) apple-green (3) brick red (4) crimson red

Colour imparted to the Bunsen flame by strontium salt is (1) bluish green (2) apple-green (3) brick red (4) crimson red
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crimson red
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Colour imparted to the Bunsen flame by strontium salt is - (1) bluish green (2) apple-green (3) brick red (4) crimson red

Description : Colour imparted to the Bunsen flame by strontium salt is - (1) bluish green (2) apple-green (3) brick red (4) crimson red

Last Answer : (4) crimson red Explanation: A flame test is performed by introducing a sample into the blue flame of a bunsen burner and noting any change in the colour of the flame. The tests can be used ... metallic elements in salts. With strontium salt, the colour of Bunsen flame ranges from crimson to red.

A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is :

Description : A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is :

Last Answer : A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is : A. `Na_(2) ... C. `NaNO_(3)` D. `K_(2)CO_(3)`

Metal (M) shows crimson red colour in flame test and its halide is deliquescent then metal (M) could be :

Description : Metal (M) shows crimson red colour in flame test and its halide is deliquescent then metal (M) could be :

Last Answer : Metal (M) shows crimson red colour in flame test and its halide is deliquescent then metal (M) could be : A. Li B. Mg C. Ca D. Ba

The green colour seen in firework displays is due to the chloride salt of– (1) Sodium (2) Strontium (3) Barium (4) Calcium

Description : The green colour seen in firework displays is due to the chloride salt of– (1) Sodium (2) Strontium (3) Barium (4) Calcium

Last Answer : (3) Barium Explanation: The red, orange, yellow, green, blue and purple colors exploding in the night sky during a pyrotechnic festival are created by the use of metal salts. Barium chloride ... orange), sodium nitrate (yellow), barium chloride (green fireworks) and copper chloride (blue fireworks).

The green colour seen in firework displays is due to the chloride salt of : (1) Sodium (2) Strontium (3) Barium (4) Calcium

Description : The green colour seen in firework displays is due to the chloride salt of : (1) Sodium (2) Strontium (3) Barium (4) Calcium

Last Answer : Barium

What is the colour imparted to the flame by Calcium,Strantium and Barium?

Description : What is the colour imparted to the flame by Calcium,Strantium and Barium?

Last Answer : Ans Calcium, strontium and barium impart characteristic brick red, crimson and apple green colours respectively to the flame. In flame the electrons are excited to higher energy levels and when they drop back to the ground state, energy is emitted in the form of visible light.

What is the colour imparted to the flame by Ca,Sr and Ba?

Description : What is the colour imparted to the flame by Ca,Sr and Ba?

Last Answer : Calcium, strontium and barium impart characteristic brick red, crimson and apple green colours respectively to the flame. In flame the electrons are excited to higher energy levels and when they drop back to the ground state, energy is emitted in the form of visible light. 

Give reason for the colour imparted to the flame by alkali metals

Description : Give reason for the colour imparted to the flame by alkali metals 

Last Answer : The alkali metals and their salts impart characteristic colour to an oxidizing flame. This is because the heat from the flame excites the outermost orbital electron to a higher energy level. When the ... electron comes back to the ground state, there is emission of radiation in the visible region. 

How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K " " (iv) Ba` `(v) Sr " " (vi) Mg " "

Description : How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K " " (iv) Ba` `(v) Sr " " (vi) Mg " "

Last Answer : How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K ... ix) `Be " " (x )Ca " " (x i)Cu`

In a flame test both lithium and strontium produce various shades of this color. What is this color?

Description : In a flame test both lithium and strontium produce various shades of this color. What is this color?

Last Answer : ANSWER: RED

The colour of loamy soil is – (1) Greenish brown (2) Bluish green (3) Yellowish brown (4) Blackish brown

Description : The colour of loamy soil is – (1) Greenish brown (2) Bluish green (3) Yellowish brown (4) Blackish brown

Last Answer : (4) Blackish brown Explanation: Loam encompasses a variety of soil types, some granulated and nicely draining, while others may be thicker and have the consistency of mud. Most loam soils are a brown or black ... yet the drainage is well. Loamy soil is composed of 40 % sand, 40% silt and 20% clay.

The colour of loamy soil is (1) Greenish brown (2) Bluish green (3) Yellowish brown (4) Blackish brown

Description : The colour of loamy soil is (1) Greenish brown (2) Bluish green (3) Yellowish brown (4) Blackish brown

Last Answer : Blackish brown

In the following diagram bunsen flame the (X ) represent.

Description : In the following diagram bunsen flame the (X ) represent.

Last Answer : In the following diagram bunsen flame the (X ) represent. A. Oxidising zone B. Reducing zone C. Lower temperature zone D. Hottest portion of flame

The hottest part of the flame of a Bunsen burner is the

Description : The hottest part of the flame of a Bunsen burner is the

Last Answer : The hottest part of the flame of a Bunsen burner is the A. Blue Zone B. Zone of complete combustion ... D. All parts of the flame are equally hot.

In which direction should you move the inoculating loop in the Bunsen burner flame?

Description : In which direction should you move the inoculating loop in the Bunsen burner flame?

Last Answer : Need answer

Why should you turn a Bunsen burner to a yellow flame if you need to leave it?

Description : Why should you turn a Bunsen burner to a yellow flame if you need to leave it?

Last Answer : The yellow flame is more visible - making it easier for othersto see. It's also a colder flame than the blue conical one.

Why do cations emit colors when heated in a Bunsen burner flame?

Description : Why do cations emit colors when heated in a Bunsen burner flame?

Last Answer : Atoms were excited by heating, electrons move to a higher energy level and as these electrons fall back to a lower energy level, the specific radiation for the element is emitted.

Bunsen burner is an example of a/an __________ burner. (A) Inside mixing/premix type (B) Outside mixing/diffusion flame/nozzle mix type (C) Rotary cup (D) Submerged combustion

Description : Bunsen burner is an example of a/an __________ burner. (A) Inside mixing/premix type (B) Outside mixing/diffusion flame/nozzle mix type (C) Rotary cup (D) Submerged combustion

Last Answer : (A) Inside mixing/premix type

Blast furnace gas burns with a bluish flame, because of the presence of (A) CO (B) CH4 (C) CO2 (D) S

Description : Blast furnace gas burns with a bluish flame, because of the presence of (A) CO (B) CH4 (C) CO2 (D) S

Last Answer : (A) CO

Anthracite coal (A) Contains more volatile matter than bituminous coal (B) Ignites more easily than bituminous coal (C) Is essentially a coking coal (D) Burns with short, bluish, yellow-tipped flame producing very little smoke

Description : Anthracite coal (A) Contains more volatile matter than bituminous coal (B) Ignites more easily than bituminous coal (C) Is essentially a coking coal (D) Burns with short, bluish, yellow-tipped flame producing very little smoke

Last Answer : (D) Burns with short, bluish, yellow-tipped flame producing very little smoke

Alkali metal salt "X" gives a pale violet colour in flame test "X" is :

Description : Alkali metal salt "X" gives a pale violet colour in flame test "X" is :

Last Answer : Alkali metal salt "X" gives a pale violet colour in flame test "X" is : A. NaCl B. LiCl C. KCl D. None of these

Which metal salt gives lilac colour to the flame?

Description : Which metal salt gives lilac colour to the flame?

Last Answer : Potassium

Blue colour is imparted to glass by the addition of (A) FeSO4 (B) PbO (C) CaO (D) NaOH

Description : Blue colour is imparted to glass by the addition of (A) FeSO4 (B) PbO (C) CaO (D) NaOH

Last Answer : (C) CaO

The bluish colour of water in deep sea is due to (a) The presence of algae and other plants found in water (b) Reflection of sky in water (c) Scattering of light (d) Absorbtion of light by sea

Description : The bluish colour of water in deep sea is due to (a) The presence of algae and other plants found in water (b) Reflection of sky in water (c) Scattering of light (d) Absorbtion of light by sea

Last Answer : (c) Scattering of light

By adding 1 ml of Orthotolidine solution to 100 ml chlorinated water taken after contact period, the residual chlorine makes the colour of solution (A) Yellowish (B) Greenish (C) Bluish (D) Reddish

Description : By adding 1 ml of Orthotolidine solution to 100 ml chlorinated water taken after contact period, the residual chlorine makes the colour of solution (A) Yellowish (B) Greenish (C) Bluish (D) Reddish

Last Answer : (A) Yellowish

Pick up the incorrect statement applicable to the field test of good cement. (A) When one thrusts one's hand into a bag of cement, one should feel warm (B) The colour of the cement is bluish (C) By rubbing cement in between fingers, one should feed rough (D) All the above

Description : Pick up the incorrect statement applicable to the field test of good cement. (A) When one thrusts one's hand into a bag of cement, one should feel warm (B) The colour of the cement is bluish (C) By rubbing cement in between fingers, one should feed rough (D) All the above

Last Answer : Answer: Option D

The effect of corona can be detected by (a) presence of ozone detected by odour (b) hissing sound (c) faint luminous glow of bluish colour (d) all of the above

Description : The effect of corona can be detected by (a) presence of ozone detected by odour (b) hissing sound (c) faint luminous glow of bluish colour (d) all of the above

Last Answer : (d) all of the above

does crimson clover stay green year round?

Description : does crimson clover stay green year round?

Last Answer : Need Answer

In a flame test, the presence of copper in a solution is evident by what color flame? Is the flame w) red x) orange y) indigo z) blue-green

Description : In a flame test, the presence of copper in a solution is evident by what color flame? Is the flame w) red x) orange y) indigo z) blue-green

Last Answer : ANSWER: Z -- BLUE-GREEN

why are my douglas fir trees 2 different shades 1 bluish green and 1 green

Description : why are my douglas fir trees 2 different shades 1 bluish green and 1 green

Last Answer : Need Answer

i have a crusty bluish green clumps growing on my shrubs. How do I get rid of it

Description : i have a crusty bluish green clumps growing on my shrubs. How do I get rid of it

Last Answer : sevin...from the lawn & garden store......read label carefully to make sure your tree is included in the list.........wear old long clothes, hat, mask, gloves and goggles.....when going to ... on food products Use dormant oil according to directions in late fall............that smothers any eggs

Which cell is found in bluish green algae or bacteria ?

Description : Which cell is found in bluish green algae or bacteria ?

Last Answer : The stem cells are found in bluish green algae or bacteria.

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 adding antimony oxide, manganese dioxide or arsenic oxide (C) Ordinary glass is represented chemically by Na2O . CaO . 6SiO2 (D) Red color is imparted to glass by addition of arsenic oxide

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

Why Be and Mg do not impart colour to the flame ?

Description : Why Be and Mg do not impart colour to the flame ?

Last Answer : Ans : The electrons in beryllium and magnesium are too strongly bound to get excited by flame. Hence, these elements do not impart any colour to the flame.

Why Be and Mg do not impart colour to the flame ?

Description : Why Be and Mg do not impart colour to the flame ? 

Last Answer : The electrons in beryllium and magnesium are too strongly bound to get excited by flame. Hence, these elements do not impart any colour to the flame. 

Which of the listed colors properly describes a DC motor commutator when correct commutation is taking place? A. Shiny blue B. Burnished green C. Brick red D. Chocolate brown

Description : Which of the listed colors properly describes a DC motor commutator when correct commutation is taking place? A. Shiny blue B. Burnished green C. Brick red D. Chocolate brown

Last Answer : Answer: D

I will be describing a chemical element. Try to identify it with the fewest number of clues. This chemical element is a silver-white metal, with bluish tinge, capable of taking a high polish. T element occurs abundantly in all ordinary rocks, except limestone and sandstone; is third in abundance of the elements in the earth's crust and used to make drink cans. The atomic number of this element is 13. Name t element.

Description : I will be describing a chemical element. Try to identify it with the fewest number of clues. This chemical element is a silver-white metal, with bluish tinge, capable of taking a high polish. T element ... crust and used to make drink cans. The atomic number of this element is 13. Name t element.

Last Answer : ANSWER: ALUMINUM

potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Description : potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Last Answer : (1) From brown to blueblack Explanation: The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black colour.

A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Description : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? (1) From brown to blue-black (2) From brown to orange-red (3) From blue to pink (4) From pink to blue-green

Last Answer : From brown to blue-black

This natural fiber obtained from the stems of a plant of the nettle family has found popularity in modern fibers with a high wet strength, absorbent but dries quickly, it can be spun or woven, has a high rot and mildew resistance and elasticity 50 percent greater than that of CHEM-92; Multiple Choice: What transuranic element is often used in satellites as a source of heat or power? w) Plutonium-238 x) Strontium-90 y) Cesium-137 z) Uranium-235

Description : This natural fiber obtained from the stems of a plant of the nettle family has found popularity in modern fibers with a high wet strength, absorbent but dries quickly, it can be spun or woven, has a high rot ... a source of heat or power? w) Plutonium-238 x) Strontium-90 y) Cesium-137 z) Uranium-235

Last Answer : ANSWER: W -- PLUTONIUM-238

Which of the following four elements has the largest atomic radius? Is it: w) strontium x) francium y) calcium z) bromine

Description : Which of the following four elements has the largest atomic radius? Is it: w) strontium x) francium y) calcium z) bromine

Last Answer : ANSWER: X -- FRANCIUM

Which one of the following is radioactive ? (1) Cesium (2) Platinum (3) Strontium (4) Thorium

Description : Which one of the following is radioactive ? (1) Cesium (2) Platinum (3) Strontium (4) Thorium

Last Answer : Thorium

Which metal gives violet colour in oxidising flame when heated with borax ?

Description : Which metal gives violet colour in oxidising flame when heated with borax ?

Last Answer : Which metal gives violet colour in oxidising flame when heated with borax ? A. Fe B. Pb C. Co D. Mn

Do all metals produce colour in a flame?

Description : Do all metals produce colour in a flame?

Last Answer : Need answer

When sodium burns; what is the colour of the flame?

Description : When sodium burns; what is the colour of the flame?

Last Answer : Golden yellow

Give reason: Glass objects when held to flame acquires golden yellow colour.

Description : Give reason: Glass objects when held to flame acquires golden yellow colour.

Last Answer : The sodium content of sodium silicate present in glass makes the flame to acquire golden yellow colour to the flame.

Join me in a farewell to Greg Lake, of Emerson Lake and Palmer, and King Crimson fame?

Description : Join me in a farewell to Greg Lake, of Emerson Lake and Palmer, and King Crimson fame?

Last Answer : I am a fan of ELP, and loved In The Court Of The Crimson King, which has the best album cover ever. Vaya con Dios!

Why doesn't Crimson FX render my movie?

Description : Why doesn't Crimson FX render my movie?

Last Answer : What are the rest of your computers specs? Because what really matters is HD free space & RAM GB, along with processor power. HD space, because you render it, the file size will be huge & you might ... I would recommend something higher than a 2.0 GHz power, to render at a steady/non crashing rate.

Why would the leaves on a giant crimson mandevilla turn yellow?

Description : Why would the leaves on a giant crimson mandevilla turn yellow?

Last Answer : Need Answer

Will my crimson mandevilla plant winter in MInnesota?

Description : Will my crimson mandevilla plant winter in MInnesota?

Last Answer : Need Answer