Question
Which two signs should be interchanged to make the
equation correct? 12 × 3 ÷ 4 + 6 – 2 = 20Solution
Given- 12 × 3 ÷ 4 + 6 – 2 = 20 After arrangement- 12 ÷ 3 x 4 + 6 -2 = 20 4 x 4 + 4 = 20 20 = 20
Which of the following statement is/are true?
I. Metal oxides are acidic in nature
II. Non-metallic oxides are basic in nature
Acid rain is caused due to pollution of the atmosphere by:
What is heavy water?
The motion of an object under free fall is an example of which of the following?
Which radioactive element is used in heart pacemakers?
A mixture of carbon monoxide and hydrogen is known as ______
Which of the following alkali metals has the highest specific heat?
What changes will happen to a bowl of ice and water kept at exactly zero degree Celsius?
Bases react with acids to form ________.
Which is the lightest and most abundant chemical element, constituting roughly 75 % of the Universe’s elemental mass?
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