1 - K2 (Cu(CN)4) which one is correct
Central atom is present in avionic sphere
2 - The oxidation number of central metal atom in [Ni(CO)4] is
4
3 - Group VIB of transition elements contains
Cr Mo W
4 - The leements in which d or f orbitals are in the process of completion are
transition elements
5 - The location of transition elements is in between
s and p block elements
6 - The melting points and boiling points upto meddle of 3d- series
increases
7 - Pure metal
does not corrode easily
8 - Compounds attracted by applied strong magnetic field are called
paramagnetic
9 - The correct electronic configuration of Cr is
[Ar]4s13d5
10 - The oxidation state of transition elements is usually
variable
11 - When light is exposed to transition element then electrons jump from lower orbitals to higher orbitals in
both a & b
12 - Non-stoichiometric compounds of transition elements are called
interstitial compounds
13 - When a compound of transition element is dissolved in a solution of salt then it produces
complex ions
14 - The specie which donates electrons to central metal atom in coordination sphere is called
Ligand is positively charged
15 - The species which donate two electron pairs in a coordination compound is called
bi-dentate ligand
16 - Which of the following can form a chealate
oxalato
17 - The central atom along with ligands is called
coordination sphere
18 - The compound or complex ion which has a ring in its structure
chelate
19 - In complex compounds the oxidation number is written in
Roman numeral
20 - Geometry of the complex compounds usually depends upon
hybridization of central metal
21 - When the central atom of coordination compound is sp3d2 hybridization the expected geometry will be
octahedral
22 - In pig iron the concentration of C-atom is
5 --- 4.5%
23 - In the production of wrought iron Mg Si and P are removed in the form of
slag
24 - With impurities like P and S the open hearth furnace is lined with.
CaO MgO
25 - Which is sold as fertilizer
Ca3(PO4)2
26 - Any process of chemical decay of metals due to the action of surrounding medium is called
corrosion
27 - When an active metal like Al comes in contact with less active element like Cu then it produces
galvanic cell
28 - Which of the following is typical transition metal?
Co
29 - Isotopes differs in
chemical properties
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