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