No. of questions - 27
Time - 15 min
1.
Mendeleev's periodic law states that:
2.
Which shows merit of Mendeleev’s periodic table?
3.
According to Dobereiner, group of three element is known as
4.
In which of the following, the elements having similar outer electronic configurations are arranged/placed?
5.
How many naturally occurring elements are there in periodic table?
6.
Which of the following period of Modern periodic table contain lanthanoids?
7.
"Modern Periodic Law" is the modification of
8.
How many horizontal rows were there in Mendeleev's periodic classification?
9.
In Modern Periodic Table, Henry Moseley observed regularities in the characteristic spectra.
10.
Who showed that the atomic number is more fundamental property of an element than it’s atomic mass?
11.
Which was the incomplete period in the long form of the Modern period table?
12.
Newland's law of octaves seemed to be true only for elements upto .
13.
The number of element present in first period of Modern periodic table is:
14.
The number of elements present in the 2nd , 3rd , 4th , 5th and 6th periods respectively are:
15.
The horizontal rows in modern periodic table are called
16.
How many groups are there in modern periodic table?
17.
What is/are the drawbacks of Mendeleev's periodic table?
18.
Who gave the idea for the first time to classify elements as per their physical and chemical properties?
19.
How many periods are there in modern periodic table?
20.
How many elements were placed in VIII group of Mendelev’s periodic table ?
21.
Lothar Mayer curve was plotted between
22.
According to Modern Periodic Law:
23.
The noble gases were placed in group of Mendeleev's classification?
24.
The number of lanthanoids and actinoid respectively present in the sixth and seventh periods are:
25.
The elements having similar chemical properties are placed in ?
26.
Which of the following period of the long form of Modern periodic table contains Actinoid?
27.
Which shows the demerit of Mendeleev’s periodic table?
