Welcome to your Periodic Classification of Elements MCQs Mock Test of 10th Class Science
1.
Q1- Which out of them has the biggest radii?
2.
Q2- Vertical columns are called as –
3.
Q3- Which of the following gives the correct order of atomic radii of O, F and N?
4.
Q4- How many groups are there in the periodic table?
5.
Q5- Which of the following, in their outermost shell has 2 valence electrons?
6.
Q6- Which group was added in Mendleev’s periodic table?
7.
Q7- Element X forms the chloride with the formula XCl2 ,which is a solid with a high melting point. X is most likely to be in the same group of periodic table as –
8.
Q8- What is the special name given to the 17th group?
9.
Q9- Which set out of them shows the correct sequence of metallic characters?
10.
Q10- Chalcogens are ?
11.
Q11- On moving from left to right in a periodic table, size of an atom ?
12.
Q12- Atomic mass is equal to the sum of ____.
13.
Q13- Which of the following elements will form acidic oxide?
14.
Q14- Name the most electronegative element of Periodic table ?
15.
Q15- Which statement is correct for left to right movement in periodic table?
16.
Q16- Electron affinity is ____.
17.
Q17- In periodic table, Helium is placed at ___
18.
Q18- Ionisation energy is measured in –
19.
Q19- The number of electrons in valence shell is equal to –
20.
Q20- Out of Mg and Al which has higher ionisation energy?
21.
Q21- Write valency of Iron ?
22.
Q23- Upto which element, the law of octaves was found to be applicable –
23.
Q24- According to Mendeleev’s Periodic law, the elements were arranged in Periodic table according to –
24.
Q25- In Mendeleev’s Periodic table, gaps were left for many elements. Pick any one out of them.
25.
Q26- What relation do Ar and Ca have?
26.
Q27- Isotopes possess –
27.
Q28- On which factor does ionisation energy depend?
28.
Q29- Pick out the odd one –
29.
Q30- Which is biggest in size –
30.
Q31- Which out of them is not a halogen?
31.
Q32- The standard element chosen for relative atomic mass is __.
32.
Q33- Electronegativity depends upon ?
33.
Q34- The order of ionisation of alkali group follows which order?
34.
Q35- Most electronegative element in group 2 is __.
35.
Q36- Which of the given elements A,B,C,D and E with atomic numbers 2,3,7,10 and 30 belong to the same period?
36.
Q37- The elements A,B,C,D,E have atomic numbers 9, 11, 17, 12and 13. Which elements belong to the same group?
37.
Q38- Where would you locate the element with electronic configuration 2,8 in modern periodic table?
38.
Q39- An element which is an essential constituent of all organic compounds belongs to ___.
39.
Q40- Which one will have the maximum number of valence electrons ?
40.
Q41- What type of oxide would eka-Aluminium form ?
41.
Q42- The element with atomic number 14 is hard and forms acidic oxide and a covalent halide . To which of the category does it belong?
42.
Q43- The law of octaves is given by ___.
43.
Q44- The modern periodic table is given by ____.
44.
Q45- Which element was not known when Mendeleev proposed the classification?
45.
Q46- Three elements B,Si and Ge are ___.
46.
Q47- Arrange the following elements in order of their increasing non metallic character Li,O,C,Be ,F?
47.
Q48- Arrange the following elements in order of their increasing metallic character Na,Si,Cl,Mg,Al ?
48.
Q49- Which of them doesn’t loose electrons easily?
49.
Q50- Which will loose electron easily?
