General Knowledge » Science and Scientific Research
______ is a group of cells similar in structure and function.
Organ
Organ system
Molecule
Tissue
General Knowledge » Science and Scientific Research
The chemical formula of gypsum is _________.
MgSO4.12H2O
CaSO4.12H2O
MgSO4.2H2O
CaSO4.2H2O
General Knowledge » Science and Scientific Research
Identify the function of the enzyme trypsin.
Emulsifying insulin
Breaking down carbohydrates
Digesting proteins
Digesting roughage and fats
General Knowledge » Science and Scientific Research
What is the set of ecosystem called?
Hydrosphere
Biome
Atmosphere
Stratosphere
General Knowledge » Science and Scientific Research
Low annual range of temperature and high annual rainfall are characteristics of a _____.
Mediterranean climate
tropical humid climate
temperate climate
cold climate
General Knowledge » Science and Scientific Research
Which of the following is a strong reducing agent used to reduce aldehydes, ketones, esters, carboxylic acid chlorides, carboxylic acids and even carboxylate salts to alcohols?
Titanium hydride
Lithium aluminum hydride
Bismuth hydride
Calcium hydride
General Knowledge » Science and Scientific Research
The motion of the body moving along a circular path is an example of ______.
accelerated motion
uniform motion
non-uniform motion
decelerated motion
General Knowledge » Science and Scientific Research
Chemical formula of bleaching powder is ______.
CaO
CaOCl2
CaCO3
Ca(OH)2
General Knowledge » Science and Scientific Research
Which of the following is a characteristic of sedimentary rocks?
Lineation
Foliation
Lithification
Bands
General Knowledge » Science and Scientific Research
Clove is an ______ indicator.
Universal
Chemical
Olfactory
Gustatory
General Knowledge » Science and Scientific Research
Which of the following is potash alum?
Na2SO4Al2(SO4)3.24H2O
Na2SO4Al2(SO4)3.20H2O
K2SO4Al2(SO4)3.12H2O
K2SO4Al2(SO4)3.24H2O
General Knowledge » Science and Scientific Research
Identify the correct statement about green algae.
Green algae usually have a rigid cell wall made of an inner layer of cellulose and an outer layer of pectose.
Green algae usually have a soft cell wall made of an inner layer of pectose.
Green algae usually have a rigid cell wall made of an inner layer of fat and an outer layer of protein.
Green algae usually have a rigid cell wall made of an inner layer of protein and an outer layer of fibre.
General Knowledge » Science and Scientific Research
Which element of group 13 is a soft metal with a low melting point (303K) and is widely used in doping semiconductors and producing solid-state devices such as transistors?
Gallium
Aluminium
Thallium
Boron
General Knowledge » Science and Scientific Research
Which of the following rocks is formed by the cooling and crystallisation of magma?
Coal
Shell
Granite
Chalk
General Knowledge » Science and Scientific Research
Acid changes the colour of blue litmus to ______.
yellow
pink
red
orange
General Knowledge » Science and Scientific Research
What is the product of a reaction of calcium carbonate, water and carbon dioxide?
Hydrochloric acid
Calcium hydroxide
Calcium oxide
Calcium hydrogen carbonate
General Knowledge » Science and Scientific Research
What type of isomerism exists in compounds containing two or more complexes, each of which contains a different set of ligands that can in principle be replaced with a ligand of the other complex?
Solvate Isomerism
Coordination isomerism
Ionisation isomerism
Linkage isomerism
General Knowledge » Science and Scientific Research
The atomic number of lead is:
82
79
81
78
General Knowledge » Science and Scientific Research
If Q = net charge, t = time, then which of the following equations is correct?
I=Q x t
t=Q x 1
General Knowledge » Science and Scientific Research
______ is a change of position.
Velocity
Speed
Distance
Motion