1. Which of the following metals remains in a liquid state at room temperature?
2. In electro-refining of metals
3. What is the pH value of a neutral solution?
4. Alloys of metals with mercury are called:
5. Who gave the theory of ionization of electrolytes?
6. Does distilled water conduct electricity under normal conditions?
7. Who discovered hydrogen gas for the first time?
8. Which of the following compounds contains covalent bonds between atoms?
9. Which of the following substances conducts electricity when dissolved in water?
10. On what basis is the modern periodic table arranged?
11. What is the maximum number of electrons that can be present in the L shell?
12. Which of the following substances exists as a single atom (monoatomic molecule)?
13. What is the chemical nature of nitrogen gas?
14. In filtration
15. In an endothermic reaction
16. Electrolysis is classified as which type of process?
17. Which of the following is an example of an endothermic reaction?
18. Which method is used to separate different colors from ink?
19. Which of the following is an alkaline earth metal?
20. Which of the following is an example of a detergent?
1. The SI unit of frequency is:
2. A fuse is used to:
3. Energy is the ability to:
4. The image formed by a plane mirror is:
5. Pitch depends on:
6. Atmospheric pressure is measured using:
7. Light travels in:
8. Friction always acts:
9. A machine with efficiency 100% is:
10. The formula for potential energy is:
11. Ultrasound has frequency greater than:
12. Twinkling of stars is due to:
13. Which color absorbs maximum heat?
14. The SI unit of pressure is:
15. Which is a good conductor of heat?
16. A body moving with constant speed in a circular path has:
17. Gravitational force between two objects depends on:
18. Like poles of magnets:
19. The focal length of a plane mirror is:
20. Work is done when:
1. Could you lend me some money? I'm very……………of cash at the moment.
2. The decision was postponed, ………….. was exactly what he wanted.
3. "Why is the ground so wet?' – 'It …………..last night'.
4. Modern English has …………….. from the mingling of the other languages.
5. She demanded that she …………allowed to meet her son in prison.
6. If…………….it would stop raining for a morning, we would cut the grass.
7. He tried to join the army but he was…………because of his poor health.
8. I wish ………..me a new one instead of having it ……………as you did.
9. I wish that I ….. in Hanoi at the end of 1972 to witness the 'Battle of Dien B. Phuinthe Air'.
10. After his girlfriend left him, George determined never………….in love again.
11. The boss doesn't allow ……………….. in the office.
12. He phoned to tell me that he couldn't come tomorrow because he …………to the dentist.
13. It is imperative that he ……………. the school regulations.
14. It was not until the thirteenth stroke …………… the bell stopped.
15. This is the…………….of the bicycle which were stolen.
16. He was the boy ……………..the principal had punished for coming late.
17. The journalist informed ………….while carrying out his instructions.
18. I would like to offer a small……………..to anyone who finds the missing dog.
19. Where ………..all this morning? It's nearly midday.
20. ………………you mention it, I do remember the accident.
1. Which hormone controls blood sugar?
2. DNA is mainly present in:
3. What is the powerhouse of cell?
4. Cell is the basic unit of
5. Which disease is caused by bacteria?
6. Plasma membrane is
7. What is the functional unit of kidney?
8. Scientific name of human is
9. Which gas is essential for photosynthesis?
10. Basic unit of heredity is
11. Study of microorganisms is called?
12. Respiration releases which of the following gas?
13. What does the Xylem transports?
14. which of the following is the example of connective tissue?
15. Human beings are
16. How many chamber does the human heart have?
17. Green pigment in plants is
18. Who discovered Blood group?
19. Largest organ of human body is
20. Site of protein synthesis is
1. Which of the following fractions has the smallest value?
2. 1 degree equal to
3. The derivative of log(log x) is
4. What is nth term of A.P.?
5. If 3 cos θ = 1 then the value of (6 sin^2 θ + tan^2 θ)/(4 cos θ) =
6. If A.P. is 1,7,13,19,.......... find the sum of 22 terms
7. If A and B are matrices, then which from the following is true?
8. Which one of the following is not a prime number?
9. What least number must be added to 1056 so that the sum is completely divisible by 23?
10. If sin θ = 3/5 then the value of cos θ is
11. If x = a sin θ and y = b tan θ then a^2/x^2 - b^2/y^2 =
12. The set of integers is
13. Which of the following numbers is divisible by 12 but not by 8?
14. lim_{x→a} (x^5 - a^5)/(x^3 - a^3) equals
15. If 4x + 12 = 36, what is the value of x+3?
16. Find dy/dx if x = at^2, y = 2at
17. If 60% of 3/5 of a number is 36, then the number is
18. A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
19. The sum of first five prime numbers is
20. If a = (2,-3) and 2a + 3b = (4,3), then b =