Question 2 :
MOH is the formula of the hydroxide of a metal MThe formula of its sulphate is:

Question 4 :
Dalton used symbol of a circle with a dot in its structure to represent.

Question 5 :
In naming certain compounds, the suffix 'ate' is used if the number of oxygen atom is.

Question 7 :
A molecule is the smalllest particle that has the capability to exist.....

Question 8 :
Which of the following is correct option for a balanced chemical reaction?

Question 9 :
...............suggested that initial letter of an element written in capitals should represent that particular element

Question 10 :
Which of the following is the mass ratio of hydrogen to oxygen?

Question 11 :
...........is a short form that stands for the atom of a specific element

Question 15 :
Identify the formula of calcium hydrogen carbonate if formula of sodium carbonate is Na₂CO₃.

Question 22 :
Cl₂ +.........+ 2H₂O{tex}\rightarrow{/tex}H₂SO₄+ 2 HCl is a balanced chemical equationChoose the correct option.

Question 24 :
Which type of elements are shown in bottom of periodic table?

Question 25 :
According to the Modern Periodic Law, physical and chemical properties of element are periodic functions of their............

Question 30 :
The number of electrons in the valence shell of an atom represents its........

Question 38 :
How many electrons are present in the outermost orbit of alkaline earth metals?

Question 39 :
Which of the following statement(s) about the modern periodic table are incorrect?<br>IThe elements in the modern periodic table are arranged on the basis of their decreasing atomic number.<br>IIThe elements in the modern periodic table are arranged on the basis of their increasing atomic masses.<br>IIIIsotopes are placed in adjoining group (s) in the periodic table.<br>IVThe elements in the modern periodic table are arranged on the basis of their increasing atomic number.

Question 49 :
Which of the element of group 17 is solid in nature?

Question 50 :
18.................elements are present on the right side of the periodic table