Sources of Energy Objective Questions

Sources of Energy Objective Questions 1-Which of the following is (are) released on fossil fuels? (A) Nitrogen (B) Carbon dioxide (C) Water vapor (D) All of the above   2-Dynamo converts the (A) mechanical energy into electrical energy (B) chemical energy into electrical energy (C) heat energy into electrical energy (D) none of the above […]

Read More

The Human Eye and the Colorful World Objective Questions

The Human Eye and the Colorful World Objective Questions 1-An image is formed on (A) Iris (B) Pupil (C) Retina (D) Cornea   2-Light enters the eye through a thin membrane called the (A) Iris (B) Pupil (C) Retina (D) Cornea   3-The eyeball is approximately ___ in shape. (A) Elliptical (B) Spherical (C) Oval […]

Read More

Metals and Non-metals Objective Questions

Metals and Non-metals Objective Questions 1-The property of metal, having shining surface, is called (A) lusture (B) conductivity (C) sonorous (D) malleability   2-The property of metal, to be beaten into thin sheets, is called (A) Conductivity (B) Ductility (C) Malleability (D) None of the above   3-Following is the most malleable metal (A) Gold […]

Read More

Acids, Bases and Salts Objective Questions

Acids, Bases and Salts Objective Questions 1-Acids (A) are sour in taste (B) change the color of the blue litmus to red. (C) both (A) and (B) (D) are bitter in taste   2- Bases (A) are sour in taste (B) change the color of the blue litmus to red. (C) both (A) and (B) […]

Read More

Chemical Reactions and Equations objective questions

Chemical Reactions and Equations Objective Questions 1- Burning of a magnesium ribbon in air (A) burns with a dazzling white flame (B) changes into a white powder (C) Both (A) and (B) (D) None of the above   2-Burning of a magnesium ribbon in air produces (A) Magnesium hydroxide (B) Magnesium carbonate (C) Magnesium dioxide […]

Read More