General Science MCQ-38

Science KPSC,UPSC,IAS Prelims,SSC,IBPS,SBI,Railways,MPSC,UPPSC



Match List I with List II.
List I (Name of Electron Orbits) List II (Number of Maximum Electrons)
A. K
B. L
C. M
D. N
1. 8
2. 18
3. 2
4. 32
Code:
A B C D

 
 
 
 

Helium atom has atomic mass 4u and its nucleus has two protons. How many Neutrons it has?

 
 
 
 

How many orbits are there in Sodium atoms?

 
 
 
 

Match List I with List II.
List I (Elements)
A. He
B. Be
C. B
D. F
List II (Valency)
1. 2
2. 0
3. 1
4. 3
Code:
A B C D

 
 
 
 

Match List I with List II.
List I (Scientists)
A. Robert Brown
B. Robert Huk
C. J.E. Purkinje
. D. Schleiden & Schwann
List II(Discovery Theories)
Cell-theory
Cell
Cell-Nucleus
4. Protoplasm
Code:
A B C D

 
 
 
 

The process of ‘Endocytosis’ is seen in which species?

 
 
 
 

Absorption of water by plant roots is an example of:

 
 
 
 

Consider the following statements:
1. Manganese steels containing about 23 per cent manganese can be made incredibly tough by heating at 700

 
 
 
 

Consider the following regarding Alloys and its constituents:
1. Stainless steel

 
 
 
 

Which of the following statement regarding carbon is incorrectly stated?

 
 
 
 

Which of the following shows allotrop in the solid and liquid states?

 
 
 
 

Cell, absorbing water from outside, swells up. This is an example of:

 
 
 
 

The shell of an egg is mostly made-up of:

 
 
 
 

Substance providing structural strength to plants is:

 
 
 
 

Which of the following is ‘slaked lime’?

 
 
 
 

Match List I with List II.
List I List II
A. Ferrous oxide 1. CaCO3
B. Ferric oxide 2. FeO
C. Marble 3. Fe2O3
D. Quick Lime 4. CaO
Code:

 
 
 
 

Consider the following:
1. Diamond

2. Lampblack
3. Graphite
4. Coal
Which of the above are crystalline forms of carbon?

 
 
 
 

Consider the following statements:
1.The gas that is produced as a fizz on opening a bottle of soft drink is carbon dioxide.
2. CO2sub>, which constitutes the raw material of life, is thirty times less abundant than argon in the atmosphere.
Which of the above statements is incorrectly stated?

 
 
 
 

A: Burning of a candle is characterised by the production of energy, evolution of gas and change of state.
R: A chemical reaction can display more than one characteristics.

 
 
 
 

A: The Law of Definite Proportions states that when two or more than two elements combine, they always combine a fixed or definite proportion by mass.
R: When hydrogen and oxygen combine to form water, they always combine in the ratio of 1:8 by mass.