Correct Option is (A)
Currently no explanation available
1. ⇒ (MHT CET 2023 12th May Evening Shift )
Which from following elements belongs to group 17 of periodic table?
A. At
B. Zn
C. As
D. Te
2. ⇒ (MHT CET 2023 12th May Evening Shift )
What is the position of copper in long form of periodic table?
A. Group -12, period-3
B. Group-11, period-4
C.Group-8, period-4
D. Group-11, period-5
Correct Option is (B)
Currently no explanation available
3. ⇒ (MHT CET 2023 10th May Evening Shift )
Which from following is a CORRECT decreasing order of ionization enthalpies of different elements?
A.
B.
C.
D.
Correct Option is (A)
The ionization enthalpy decreases down the group due to increase in the atomic size. The correct decreasing order of ionization enthalpies is:
4. ⇒ (MHT CET 2023 10th May Evening Shift )
What is the position of transition elements from to in long form of periodic table?
A. Group 4 to 13, period-3
B. Group 3 to 12, period-4
C. Group 5 to 14, period-4
D. Group 3 to 12, period-5
Correct Option is (B)
The transition elements from Scandium (Sc) to Zinc (Zn) in the periodic table are found in the d-block. These elements specifically fall within the groups 3 to 12. In terms of periods, Scandium (Sc), which is the first element in this series, starts at atomic number 21, and this places it in the 4th period of the periodic table. Zinc (Zn), with atomic number 30, is also in the same period.
Therefore, the position of the transition elements from Scandium (Sc) to Zinc (Zn) in the long form of the periodic table is :
Option B : Group 3 to 12, period-4
5. ⇒ (MHT CET 2023 9th May Evening Shift )
Which group elements from following are called as chalcogens?
A.group 13
B. group 15
C.group 16
D. group 17
Correct Option is (C)
Chalcogens are the elements in group 16 of the periodic table. This group includes oxygen (O),
sulfur (S), selenium (Se), tellurium (Te), and polonium (Po). Therefore, the correct answer is :
Option C : group 16