MCQOPTIONS
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MCQOPTIONS
This section includes 144 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Elements of d group are called [DPMT 1996] |
| A. | Transition elements |
| B. | Transuranic elements |
| C. | Metals |
| D. | Metalloids |
| Answer» B. Transuranic elements | |
| 2. |
Last element of group-IV is found to be [DPMT 1996] |
| A. | Strong metallic |
| B. | Weak metallic |
| C. | Strong non-metallic |
| D. | Weak non-metallic |
| Answer» C. Strong non-metallic | |
| 3. |
In the modern periodic table, the place of the element with atomic number 31 is in [MP PMT 1999] |
| A. | s - block |
| B. | d- block |
| C. | p -block |
| D. | f - block |
| Answer» D. f - block | |
| 4. |
The element or elements whose position is anomalous in the periodic table is |
| A. | Halogens |
| B. | \[Fe,\,Co\] and \[Ni\] |
| C. | Inert gases |
| D. | Hydrogen |
| Answer» E. | |
| 5. |
Which is metalloid [Bihar MEE 1997] |
| A. | \[Pb\] |
| B. | \[Sb\] |
| C. | \[Bi\] |
| D. | \[Zn\] |
| E. | \[Mg\] |
| Answer» C. \[Bi\] | |
| 6. |
The total number of rare-earth elements is [CPMT 1993] |
| A. | 8 |
| B. | 32 |
| C. | 14 |
| D. | 10 |
| Answer» D. 10 | |
| 7. |
Highest density is of ???. [RPET 2000] |
| A. | \[Ir\] |
| B. | \[Os\] |
| C. | \[Pb\] |
| D. | \[Hg\] |
| Answer» C. \[Pb\] | |
| 8. |
Elements with outer electronic configuration \[n{{s}^{2}}n{{p}^{6}}\] are [MP PET/PMT 1998] |
| A. | Alkaline earth metals |
| B. | Transition elements |
| C. | Chalcogenes |
| D. | Noble gases |
| Answer» E. | |
| 9. |
In the long form of the periodic table, all the non- metals are placed under [EAMCET 1988] |
| A. | s-block |
| B. | p-block |
| C. | d-block |
| D. | f-block |
| Answer» C. d-block | |
| 10. |
Who developed the long form of periodic table [MP PET 1997] |
| A. | Lothar Meyer |
| B. | Niels Bohr |
| C. | Mendeleef |
| D. | Moseley |
| Answer» C. Mendeleef | |
| 11. |
The element with quantum numbers \[n=2,l=1,m=1,s=-1/2\] has the following position in the periodic table |
| A. | Group VII-A, period II |
| B. | Group 0, period II |
| C. | Group VII-A, period III |
| D. | Group 0, period III |
| Answer» C. Group VII-A, period III | |
| 12. |
The tenth elements in the periodic table resembles with the [CPMT 1988] |
| A. | First period |
| B. | Second period |
| C. | Fourth group |
| D. | Ninth group |
| Answer» C. Fourth group | |
| 13. |
The number of elements in each of the long periods in the periodic table is |
| A. | 2 |
| B. | 8 |
| C. | 18 |
| D. | 32 |
| Answer» D. 32 | |
| 14. |
Of the following pairs, the one containing example of metalloid elements in the periodic table is |
| A. | Sodium and potassium |
| B. | Fluorine and chlorine |
| C. | Calcium and magnesium |
| D. | Boron and silicon |
| Answer» E. | |
| 15. |
Choose the typical element |
| A. | K |
| B. | Na |
| C. | Sc |
| D. | He |
| Answer» C. Sc | |
| 16. |
Chemical behaviour of an atom is determined by |
| A. | Atomic number |
| B. | Mass number |
| C. | Binding energy |
| D. | Number of isotopes |
| Answer» B. Mass number | |
| 17. |
The elements on the right side of the periodic table are [CPMT 1976] |
| A. | Metals |
| B. | Metalloids |
| C. | Non-metals |
| D. | Transition elements |
| Answer» D. Transition elements | |
| 18. |
The screening effect of d-electons is [RPMT 2000] |
| A. | Equal to that of p-electrons |
| B. | More than that of p-electrons |
| C. | Same as f-electrons |
| D. | Less than p-electrons |
| Answer» D. Less than p-electrons | |
| 19. |
In the modern periodic table, elements are arranged in [MP PMT 1990; MP PET 1995; CPMT 1971, 73, 78, 80] |
| A. | Increasing mass |
| B. | Increasing volume |
| C. | Increasing atomic number |
| D. | Alphabetically |
| Answer» D. Alphabetically | |
| 20. |
The long form of periodic table is based on [CPMT 1997] |
| A. | Shape of the atom |
| B. | Mass of the atom |
| C. | Atomic number of the atom |
| D. | Electronegativity |
| Answer» D. Electronegativity | |
| 21. |
Alkali metals in each period have [MP PMT 1995] |
| A. | Smallest size |
| B. | Lowest ionization potential |
| C. | Highest ionization potential |
| D. | Highest electronegativity |
| Answer» C. Highest ionization potential | |
| 22. |
Which metal has 2 electrons in the outermost orbit |
| A. | Na |
| B. | Cu |
| C. | Au |
| D. | Be |
| Answer» E. | |
| 23. |
The element with configuration \[1{{s}^{2}},\,2{{s}^{2}}{{p}^{6}},\,3{{s}^{2}}\] would be [CPMT 1986; MP PMT 1993] |
| A. | A metal |
| B. | A non-metal |
| C. | An inert gas |
| D. | A metalloid |
| Answer» B. A non-metal | |
| 24. |
The element having the electronic configuration \[1{{s}^{2}},\] \[2{{s}^{2}}\,2{{p}^{6}},\,3{{s}^{2}}\,3{{p}^{1}}\] is |
| A. | A transition element |
| B. | A representative element |
| C. | An inert gas |
| D. | An inner-transition element |
| Answer» C. An inert gas | |
| 25. |
Mosley's name is most closely associated with the discovery of |
| A. | Positron |
| B. | Deutrons |
| C. | Atomic number |
| D. | Atomic weight |
| Answer» D. Atomic weight | |
| 26. |
Which pair of elements has same chemical properties [EAMCET 1987] |
| A. | 13, 22 |
| B. | 3, 11 |
| C. | 4, 24 |
| D. | 2, 4 |
| Answer» C. 4, 24 | |
| 27. |
Which pair of atomic numbers represents \[s\]-block elements [EAMCET 1990; RPMT 1997; MP PET 2003] |
| A. | 7, 15 |
| B. | 6, 12 |
| C. | 9, 17 |
| D. | 3, 12 |
| Answer» E. | |
| 28. |
Which configuration represents a noble gas [DPMT 2000] |
| A. | \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}3{{d}^{10}}4{{s}^{2}}\] |
| B. | \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}\] |
| C. | \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{p}^{6}}\] |
| D. | \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}\] |
| Answer» C. \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{p}^{6}}\] | |
| 29. |
Electronic configuration of chalcons in their outermost orbit is |
| A. | \[{{s}^{2}}{{p}^{3}}\] |
| B. | \[{{s}^{2}}{{p}^{4}}\] |
| C. | \[{{s}^{2}}{{p}^{5}}\] |
| D. | \[{{s}^{2}}{{p}^{6}}\] |
| Answer» C. \[{{s}^{2}}{{p}^{5}}\] | |
| 30. |
On going left to right in a period, in transition metals, their atomic volumes[MP PMT 2003] |
| A. | Decrease |
| B. | Increase |
| C. | Remain same |
| D. | None of these of correct |
| Answer» B. Increase | |
| 31. |
Aluminium is diagonally related to (in periodic table) [MP PET 1993] |
| A. | Li |
| B. | C |
| C. | B |
| D. | Be |
| Answer» E. | |
| 32. |
The elements in which s and p-orbitals are present |
| A. | Common elements |
| B. | Inert gases |
| C. | Halogens |
| D. | Transitional elements |
| Answer» C. Halogens | |
| 33. |
Which group of the periodic table contains only metals [UPSEAT 2003] |
| A. | IIA |
| B. | IB |
| C. | IA |
| D. | None of these |
| Answer» C. IA | |
| 34. |
Chemical property of Li and Mg similar because [RPMT 2002] |
| A. | These belong to same group |
| B. | Both ionisation potential is same |
| C. | Shows diagonal relationship |
| D. | Both electron affinity is same |
| Answer» D. Both electron affinity is same | |
| 35. |
The elements having theelectronicconfiguration,[\[Kr\]] \[4{{d}^{10}}{{f}^{14}},\,5{{s}^{2}}{{p}^{6}}{{d}^{2}},\,6{{s}^{2}}\] belongs to [CPMT 1982] |
| A. | s-block |
| B. | p-block |
| C. | d-block |
| D. | f-block |
| Answer» D. f-block | |
| 36. |
Diagonal relationship is shown by [DPMT 1984] |
| A. | Elements of first period |
| B. | Elements of second period |
| C. | Elements of third period |
| D. | b and c both |
| Answer» E. | |
| 37. |
Which of the following pairs has both members from the same period of the periodic table [CPMT 1985; UPSEAT 2001; BHU 2003] |
| A. | \[Na-Ca\] |
| B. | \[Na-Cl\] |
| C. | \[Ca-Cl\] |
| D. | \[Cl-Br\] |
| Answer» C. \[Ca-Cl\] | |
| 38. |
Which of the following pairs has both members from the same group of the periodic table [CPMT 1985; MP PET/PMT 1998] |
| A. | \[Mg-Ba\] |
| B. | \[Mg-Na\] |
| C. | \[Mg-Cu\] |
| D. | \[Mg-K\] |
| Answer» B. \[Mg-Na\] | |
| 39. |
The heaviest atom amongst the following is [CPMT 1976; NCERT 1976] |
| A. | U |
| B. | Ra |
| C. | Pb |
| D. | Hg |
| Answer» B. Ra | |
| 40. |
An element with atomic number 20 will be placed in which period of the periodic table [MNR 1986; UPSEAT 1999] |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» B. 3 | |
| 41. |
On moving from left to right across a period in the table the metallic character [CPMT 1986] |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | First increases and then decreases |
| Answer» C. Remains constant | |
| 42. |
The element californium belongs to the family [MNR 1987] |
| A. | Actinide series |
| B. | Alkali metal family |
| C. | Alkaline earth family |
| D. | Lanthanide series |
| Answer» B. Alkali metal family | |
| 43. |
Which of the following element does not occur in liquid form [RPMT 2002] |
| A. | Hg |
| B. | Li |
| C. | Ga |
| D. | Br |
| Answer» C. Ga | |
| 44. |
Which of the properties remains unchanged on descending a group in the periodic table [MP PMT 1997; RPMT 2002] |
| A. | Atomic size |
| B. | Density |
| C. | Valence electrons |
| D. | Metallic character |
| Answer» D. Metallic character | |
| 45. |
Which set has the same number of unpaired electrons in their ground state [JIPMER 2000] |
| A. | \[C{{l}^{-}},F{{e}^{3+}},C{{r}^{3+}}\] |
| B. | \[N{{a}^{+}}\], \[M{{g}^{2+}}\], \[Al\] |
| C. | \[Na,\,P,\,\,Cl\] |
| D. | \[N,\,P,V\] |
| Answer» E. | |
| 46. |
The nitride ion in lithium nitride is composed of [CBSE PMT 2001] |
| A. | \[7P+7e\] |
| B. | \[10P+7e\] |
| C. | \[7P+10e\] |
| D. | \[10P+10e\] |
| Answer» D. \[10P+10e\] | |
| 47. |
Beryllium shows diagonal relationship with [Pb.CET 2003] |
| A. | Mg |
| B. | Na |
| C. | B |
| D. | Al |
| Answer» E. | |
| 48. |
Astatine is a [RPET 2000] |
| A. | Halogen |
| B. | Rare earth element |
| C. | Alkaline earth metal |
| D. | None of these |
| Answer» B. Rare earth element | |
| 49. |
The \[d\]-block elements consists mostly of [MP PMT 1994] |
| A. | Monovalent metals |
| B. | All non-metals |
| C. | Elements which generally form stoichiometric metal oxide |
| D. | Many metals with catalytic properties |
| Answer» E. | |
| 50. |
The first element of rare-earth metals is [AFMC 1992] |
| A. | Cerium |
| B. | Actinium |
| C. | Uranium |
| D. | Lanthanum |
| Answer» B. Actinium | |