Q19. Assign the position of the element having outer electronic configuration
(i) ns²np⁴ for n=3
(ii) (n-1)d²ns² for n=4, (iii) (n-2) f ⁷(n-1)d¹ns² for n=6 [ NCERT ]
(i) ns²np⁴ for n=3
(ii) (n-1)d²ns² for n=4, (iii) (n-2) f ⁷(n-1)d¹ns² for n=6 [ NCERT ]
Anonymous Quiz
23%
Aluminum, Scandinavian , Titanium
23%
Gadolinium , Sulphur , Titanium
23%
Silicone, Zirconium , Cm
31%
Sulphur, Titanium , Gadolinium
❤1
Q20. Which of the following statements related to the modern periodic table is incorrect? [NCERT]
Anonymous Quiz
25%
p-block has 6 columns, because a maximum of 6 electrons can occupy all the orbitals in a p-shell.
58%
The d-block has 8 columns, because a maximum of 8 electrons can occupy all orbitals in a d-subshell
8%
Each block contains a number of columns equal to number of electrons that can occupy that subshell
8%
block indicates value of azimuthal no.for last subshell received e- in building up electronic config
❤1🥰1
Q21. Tell the period , group and block of
(Xe) 6s²4f⁷5d¹
(Xe) 6s²4f⁷5d¹
Anonymous Quiz
77%
6,3, F Block
8%
4,12,D Block
8%
3rd , 3rd , F Block
8%
None
👍1
❤2
Q23. Which of the following is pseudo inert gas ?
Anonymous Quiz
14%
[ Ar] 4s²3d¹⁰
29%
[He] 2s² 2p⁶
57%
Both a and b
0%
None
⚡1
Q24. Which of the following is half filled ?
Anonymous Quiz
8%
Yb²+
25%
Eu²+
17%
Tb⁴+
50%
Both b and c
❤1
Q26. The atom having valence shell electronic configuration : 4s²4p²
Anonymous Quiz
10%
Group II A & period 3
40%
Group II B & period 4
50%
Group IVA & period 4
0%
Group IIIA & period 3
Q27. Which of the following set of elements belong to same period
Anonymous Quiz
38%
Zn,Cd,Hg
38%
Fr, Ra , U
15%
K , Ca, Ag
8%
none
❤1
Q28. for the elements Z=120 , in which family would you place
Anonymous Quiz
30%
group 18 , inert gas
50%
group 2 , alkali metals
10%
group 15 , nitrogen
10%
none
Q29. The no. of d electron in Fe+2 is not equal to number of electron in which of the follwing ? [ AIPMT ]
Anonymous Quiz
30%
P electrons in Cl
20%
d electrons in Fe
30%
P electrons in Ne
20%
s electrons in Mg
❤1
Q30. Chloride of element A gives neutral solution in water . element A belongs to [ AIIMS ]
Anonymous Quiz
83%
first group
0%
fifth group
0%
third group
17%
first transition series
❤3
❤2
Q32.
statement 1 : the principal quantum number define main energy level known as subshell.
statement 2 : The distribution of electrons into orbitals of an atom is called its electronic configuration
statement 1 : the principal quantum number define main energy level known as subshell.
statement 2 : The distribution of electrons into orbitals of an atom is called its electronic configuration
Anonymous Quiz
0%
statement 1 is incorrect statement 2 is incorrect
20%
statement 1 is correct statement 2 is incorrect
20%
statement 1 is correct statement 2 is correct
60%
statement 1 is incorrect statement 2 is correct
❤2
Q33. An element’s location in the
Periodic Table reflects the quantum numbers
of the ______ orbital filled
Periodic Table reflects the quantum numbers
of the ______ orbital filled
Anonymous Quiz
0%
first
60%
last
20%
2nd last
20%
none
❤2
Q34.
1. the properties of an element have periodic dependence upon its atomic number and not on relative atomic mass
2. Hydrogen can also gain an electron to achieve a noble gas arrangement and hence it can behave similar to a group 17 (halogen family) elements
3. the number of elements in each period is twice the number of atomic orbitals available in the energy level that is being filled
1. the properties of an element have periodic dependence upon its atomic number and not on relative atomic mass
2. Hydrogen can also gain an electron to achieve a noble gas arrangement and hence it can behave similar to a group 17 (halogen family) elements
3. the number of elements in each period is twice the number of atomic orbitals available in the energy level that is being filled
❤1
Q34. How many statement are correct? [ NCERT LINES ]
Anonymous Quiz
20%
one
20%
two
50%
three
10%
none
❤3
Q35. Which is wrong to S Block Elements ? [ NCERT LINES ]
Anonymous Quiz
10%
reactive metals with low ionization enthalpies
60%
They lose the outermost electron(s) readily to form 1+ ion (in the case of alkaline earth metals )
20%
The metallic character and the reactivity increase as we go down the group
10%
s-block elements, with the exception of those of lithium and beryllium are predominantly ionic
❤1
Q36. Which of the following is WRONG for PBlock elements ?
Anonymous Quiz
11%
The noble gases thus exhibit very low chemical reactivity
22%
VIIA & VI A have highly -VE electron gain enthalpies & readily 1 or 2 e- to attain noble gas config
11%
The non-metallic character increases as we move from left to right across a period
56%
p block only called the Representative Elements or Main Group Elements
❤1
Q37. Considering the atomic number and position in the periodic table, arrange the following elements in the increasing order of metallic character : Si,Be,Mg, Na, P. [ NCERT ]
Anonymous Quiz
50%
P < Si < Be < Mg < Na.
25%
Si < P < Be < Mg < Na.
13%
Si < P < Be < Na < Mg
13%
none
Q38. They are all metals. They mostly form coloured ions, exhibit variable valence (oxidation states), paramagnetism and oftenly used as catalyst
Anonymous Quiz
0%
S BLOCK
9%
P BLOCK
91%
D BLOCK
0%
F BLOCK