RRB General Science Questions:-
B. Guard Cell
Q.2 Urethra is a part of which system in the human body?
A. Autonomous Nervous System
B. Excretory System
C. Central Nervous System
D. Olfactory System
Q.3 If a patient is suffering from diabetes, a doctor is likely to administer which of the following injections?
Q.4 Binary fission is seen in
Q.5 The plant cell wall is mainly composed of
Q.6 Which cell organelle plays a central role in cellular reproduction?
B. Food Vacuoles
Q.7 Blood is a type of which tissue?
A. Epithelial tissue
B. Connective tissue
C. Nervous tissue
D. Muscular tissue
Q.8 Which instrument is used to measure blood pressure?
Q.9 Which of the following is associated with movement of water in plants?
Q.10 How many atoms of Oxygen unite to form a molecule of Ozone?
Q.11 What is the chemical formula of aluminum oxide?
Q.12 Which shell is closest to the nucleus of an atom?
A. K shell
B. L shell
C. M shell
D. N shell
Q.13 Protium, Deuterium and Tritium are atomic species of
Q.14 A change of state directly from solid to gas without changing into liquid state is called
Q.15 An alloy contains 30% zinc and 70% copper. What is the name of this alloy?
C. German Silver
Q.16 A solution contains 50 g of common salt in 340 g of water. Calculate the mass of the solution.
A. 290 g
B. 6.8 g
C. 680 g
D. 390 g
Q.17 Solid carbon dioxide is also called as
A. Dry ice
C. Compressed carbon
D. Rock salt
Q.18 What is humidity?
A. The amount of humus in the soil
B. The amount of water vapor present in the air
C. Human density in a particular region
D. Human birth rate
Q.19 What is a Colloid?
A. A heterogeneous mixture
B. A type of rubber
C. A plant product
D. A kind of alloy
Q.20 What is the symbol for Potassium?
Q.21 What is an Ion?
A. A negatively or positively charged particle
B. The nucleus of an atom
C. A negative neutron
D. A group of photons
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