ECAT Chemistry Chapter 17 Transition Elements Online Test With Answers

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ECAT Chemistry Chapter 17 Transition Elements Online Test

Sr. # Questions Answers Choice
1 Transition elements are called so because: Form interstital sompounds have high m.p In between 's' and' 'p' block elements All of these
2 f-block elements are called : Alkali metal Alkakline earth metals Transition elements Electron deficient elements
3 d-block elements are also called : alkali metal Alkaline earth metals Transition elements Electron deficient elements
4 6-d series is in the period : 4th 5th 6th 7th
5 Series starting from57La,42Hf -80Hg is in the period: 4th 5th 6th 7th
6 5-d series is in the period : 4th 5th 6th 7th
7 4-d series is in the period: 4th 5th 6th 7th
8 Series starting form 39Y to 48CD is in period: 4th 5th 6th 7th
9 Which period starts from 11Sc to 30Zn ? First Period Second Period Third Period 4th Period
10 3-d series elements are present in: First period Second Period Third period 4th period
11 Oxalic acid oxidizes to: CO CO<sub>2</sub> Oxalates None of these
12 Property of transition element is : Low m.p and b.p Parramagnetism Oxidation state Low binding energies
13 Content of carbon in steel is: 0.12 to 0.25% 0.25% to 2.5% 3.0 to 3.5% 4.0 to 4.5%
14 Maximum variable oxidation state is of: Mn<sup>+2</sup> Fe<sup>+3</sup> Cr<sup>+1</sup> a and b
15 Solubility of KMnO4 at higher temperature is: 5% 7% 15% 25%
16 During oxidation in k2Cr2O7, Cr VI changes to : I II III IV
17 Rusting can be avoided by : Making alloys Tin or Zinc plating Use of enamel All of these
18 Coordination sphere may be: Cationic Anionic Neutral All above
19 [Ti(H2O)6]+3ion absorbs colour: Blue Yellow Green Red
20 Which is non typical transition element : Ni Co Y Fe
21 The total number of transition elements is: 10 14 40 50
22 Coordination number of Pt in [PtCl (NO2) (NH3)4]2- 2<sup>-</sup> 4 1 6
23 The colour of transition metal complexes is due to: d-d transitions of electorns Paramagnetic nature of transition Ionization Loss of s-electrons
24 The percentage of carbon in different types of iron products is in the order of: Cast iron &gt; wrought iron &gt; steel wrought iron &gt; steel &gt; cast rion Cast iron &gt; steel &gt; wrought iron Cast iron = steel &gt; wrought iron
25 Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate? [Pt(NH<sub>3</sub>)<sub>4</sub>(NO<sub>2</sub>)]SO<sub>4</sub> [PtNO<sub>2</sub>Cl(NH<sub>3</sub>)<sub>4</sub>]SO<sub>4</sub> [PtCl(NO<sub>2</sub>)(NH<sub>3</sub>)<sub>4</sub>]SO<sub>4</sub> [Pt(NH<sub>3</sub>)<sub>4</sub>(NO<sub>2</sub>)Cl]SO<sub>4</sub>
26 Group VI-B of transition elements contains: Zn, Cd, Hg Fe ,Ru ,Os Cr, Mo ,W Mn, Te, Re
27 Which of the following is a typical transition metal? Sc Y Ra Co
28 Which of the following is non-typical transition element? Cr Mn Zn Fe
29 AgCl is soluble is Aqua regia H<sub>2</sub>SO<sub>4</sub> HCl NH<sub>3</sub>
30 Which one of the following metal ions is colourless? V<sup>2+</sup> Cr<sup>3+</sup> Zn<sup>2+</sup> Ti<sup>3+</sup>
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