Science English

Question. Which animal never drinks water in its entire life?

Ans: Kangaroo rat

Question. What is the physical phase of life called?

Ans: Protoplasm

Question. The largest cell is ________________

Ans: The egg of an Ostrich

Question. Which is the largest human cell?

Ans: Ovum

Question. _________________ is the longest cell.

Ans: Nerve Cell

Question. What is the name of the cells in the body that engulf foreign particles like bacteria?

Ans: Phagocytes

Question. There are _____ number of muscles in human.

Ans: 639

Question. What is the life span of RBC?

Ans: 120 days

Question. What is the life span of WBC?

Ans: 2-15 days

Question. Which is the vertebrate that has two chambered heart?

Ans: Fish

Question. The number of ribs in a human body is _____.

Ans: 24

Question. Which is the smallest flightless bird?

Ans: Kiwi

Question. Saurology is the study of ___________.

Ans: Lizards

Question. Hormones are produced by __________

Ans: Endocrine glands

Question. Which of the following is the ‘master gland’?

Ans: Pituitary gland

Question. What is the full form of ADH?

Ans: Anti Diuretic Hormone

Question. What is the normal value of blood sugar in the body?

Ans: 80 to 120mg/100 ml of blood

Question. Which is the largest blood vessel in the body?

Ans: Aorta

Question. Which of the following carries impure blood?

Ans: Pulmonary artery

Question. Who had performed the world’s first heart transplant?

Ans: Christian Bernard

Question. Which of the following is not an allotrope of Carbon?

Ans: Glass

Question. What is the formula of Sulfuric acid?

Ans: H2SO4

Question. How are the following elements arranged in the Periodic table?

Ans: H, He, Li, Be and B

Question. What is the number of periods in which Periodic table is divided?

Ans: 7

Question. There are ___ Groups in the Periodic table.

Ans: 18

Question. Which one of the following is not an element of Noble gases?

Ans: Hydrogen

Question. Mole is defined as the number of atoms found in _____ of carbon-12?

Ans: 12 grams

Question. Which of the following is not a mixture?

Ans: Glass

Question. Alloys are _______________

Ans: Harder than the pure metal

Question. What is the name of that process in which oxygen is removed?

Ans: Reduction

Question. Rusting is an ___________ reaction

Ans: Oxidation

Question. What is needed for rusting to occur?

Ans: Water and Oxygen

Question. All acids are ________________

Ans: Corrosive when they are strong

Question. When an acid reacts with a metal carbonate, the products formed are _____________

Ans: Salt, Water and Carbon dioxide

Question. Which one is an alkaline among the following?

Ans: Ammonia

Question. In Periodic table elements are arranged according to their ___________

Ans: Atomic number

Question. What is an Isotope?","Atoms of an element having different mass number

Ans: Atoms of an element having different mass number

Question. Atomic number is represented by which letter?

Ans: Z

Question. Which science is sometimes called ‘central science’?

Ans: Chemistry

Question. Which acid is used in the body to help digestion?

Ans: Hydrochloric Acid

Question. Which of the following was to be discovered first in the chromospheres of the sun?

Ans: Helium

Question. Which of the following is in liquid form at room temperature?

Ans: Francium

Question. Sodium metal is kept under

Ans: kerosene

Question. Which of the following are the ingredients ofgunmetall?

Ans: Copper, Tin

Question. From which mineral is radium obtained?

Ans: Pitchblende

Question. otassium nitrate is used in

Ans: fertilizer

Question. Permanent hardness of water may be removed by the addition of

Ans: sodium carbonate

Question. Soda water contains

Ans: carbon dioxide

Question. The most important ore of aluminum is

Ans: bauxite

Question. Most soluble in water is

Ans: sugar

Question. Which of the following was to be discovered first in the chromospheres of the sun?

Ans: Helium

Question. Which of the following is in liquid form at room temperature?

Ans: Francium

Question. Sodium metal is kept under

Ans: kerosene

Question. Which of the following are the ingredients of gunmetal?

Ans: Copper, Tin

Question. From which mineral is radium obtained?

Ans: Pitchblende

Question. Potassium nitrate is used in

Ans: fertiliser

Question. Permanent hardness of water may be removed by the addition of

Ans: sodium carbonate

Question. Soda water contains

Ans: carbon dioxide

Question. The most important ore of aluminum is

Ans: bauxite

Question. Most soluble in water is

Ans: sugar

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