Question
7, 16, 33, 74, 153,
312 Find the wrong number in the given number seriesSolution
7 × 2 + 2 = 16 16 × 2 + 3 = 35 35 × 2 + 4 = 74 74 × 2 + 5 = 153 153 × 2 + 6 = 312 Therefore, 35 should come in place of 33.
Acid rain is caused due to pollution of the atmosphere by:
Which dating method is commonly used to determine the age of materials from prehistoric times?
The process of converting a solid directly into its vapor is called:
What happens to a liquid, when the vapour pressure equals the atmospheric pressure?
Why do metals conduct electricity?
Rod of which of the following metal is used in nuclear reactors to slow down the speed of the neutrons?
Which of the following substances will turn red litmus paper blue?
Which drug is used as an anti-inflammatory?
Which of the following pair of element – atomicity is correct?
I. Helium – monoatomic
II. Oxygen – triatomic
What is the chemical formula for common rust?
1. Fe3O4
2. FeO
3. Fe2O3 . xH2O
4. FeCL3
