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Gold and Its Compounds



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Q1. Which of the following statements you think is wrong regarding ? particle scattering effect?

(a) ? particles mostly move through the gold foil having zero deflection
(b) A small fraction are deflected
(c) One in Twenty Thousand turns 180?
(d) The thickness of the gold foil is about 100?m

Q2. Elements do emit radiation on their own and this property is known as _____

(a) Radioactivity
(b) Refraction
(c) Absorption
(d) Adsorption

Q3. Which of the following models are not the same as Thomson Model of Atom?

(a) plum pudding model
(b) watermelon model
(c) raisin pudding model
(d) nuclear model

Q4. The complex ion [Ag(S2O3)2]3- is associated with which field?

(a) Electroplating
(b) Medicine
(c) Water treatment
(d) Photography

Q5. The platinum complex, trans-platin has been used in cancer treatment.

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q6. The coordination complex chloridotris (triphenylphosphine) rhodium(I) is used in the hydrogenation of alkenes. It is also known as __________ catalyst.

(a) Grubb
(b) Pearlman
(c) Wilkinson
(d) Ziegler-Natta

Q7. Which of the following biologically important coordination compounds has a magnesium central atom?

(a) Chlorophyll
(b) Haemoglobin
(c) Vitamin B12
(d) Carboxypeptidase-A

Q8. Haemoglobin is a complex compound of which metal ion?

(a) Fe2+
(b) Fe3+
(c) Co2+
(d) Co3+

Q9. Hardness of water is estimated by simple titration with which compound?

(a) Na2(EDT
(b) Fe(EDTA)
(c) Mg(EDTA)
(d) Co(EDTA)

Q10. Which reagent is used for detecting Ni2+ ions in solution?

(a) EDTA
(b) Dimethylglyoxime
(c) ?-nitroso-?-naphthol
(d) Cupron


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0 Answer
305 views

Highest (+7) Oxidation State Is Shown By

Modified 240 Year Ago

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240 Year Ago

Highest (+7) Oxidation State Is Shown By

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279 views

The Outer Electron Configuration Of Gd (At. No. 64) Is

Modified 309 Year Ago

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309 Year Ago

The Outer Electron Configuration Of Gd (At. No. 64) Is

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269 views

A Metal Gets Coated With A Green Basic Carbonate When Exposed At Atmosphere. Metal Is

Modified 4 Year Ago

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4 Year Ago

A Metal Gets Coated With A Green Basic Carbonate When Exposed At Atmosphere. Metal Is

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245 views

A Transition Element X Has A Configuration [Ar]3d4 In Its + 3 Oxidation State. Its Atomic Number Is

Modified 238 Year Ago

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238 Year Ago

A Transition Element X Has A Configuration [Ar]3d4 In Its + 3 Oxidation State. Its Atomic Number Is

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242 views

The General Electronic Configuration Of Transition Elements Is

Modified 240 Year Ago

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240 Year Ago

The General Electronic Configuration Of Transition Elements Is

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230 views

A Red Solid Is Insoluble In Water. However It Becomes Soluble If

Modified 309 Year Ago

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309 Year Ago

A Red Solid Is Insoluble In Water. However It Becomes Soluble If

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224 views

The Aqueous Solution Containing Which One Of The Following Ions Will Be Colourless

Modified 238 Year Ago

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238 Year Ago

The Aqueous Solution Containing Which One Of The Following Ions Will Be Colourless

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