Valency of Halogen Group? – 1
Which is the inert gas in the fourth period?Kr
Largest joint of body= Knee
Valency of nitrogen ? – 3
Scientific name of Apple? – Malus
Scientific name of Elephant? – Loxodonta
What will be the electro-negativity on moving left to right in the Periodic table? Increase
King of Acid – H2SO4
What is the chemical name of CaO? – Calcium oxide
What is the chemical name of H2SO4? – Sulfuric acid
Male Chromosomes are represented by? – 44+XY / 22+XY
Period that does not Contain any Metalloids? – 1st Period and 7th Period
Which acid is present in Lemon? – Citric Acid
4th Period has how many elements? – 18 elements
Ethanoic acid has which group? -COOH
How many elements are found in Mendeleev Periodic table? – 63
What is the molecular mass of Ozone? – 48
Which is the stable tissue in plant? – Xylem
Formula of Alkene? – CnH2n
For what purpose convex mirror is used? – Side view
Which group is termed as Zero Group?18
Which is the strongest metal?
Tungsten
What is the scientific name of CAT?Felis Catus
How many light years is called one parsec?3.262
Which gas is produced when lightning occurs?
-Nitrous oxide
Which is the heaviest metal in the periodic table?
Osmium
Molecular Mass of NaCl – 58.5
Alternate current was discovered by – Nicola Tesla
Formula for Momentum= M*V
Quick Silver – Hg (Mercury)
Largest muscle – Gluteus maximus
Which family does Boron belong to? – Metalloid
Male reproductive organ in flower – Stamens
How many ribs are there in a snake’s body? 24
pH value of Aqua Regia – 1 to 3
Chemical name of vitamin B12 – Cyanocobalamin
Whose unit candela is? – Luminous intensity
What types of mirror are used by dentists? – concave mirrors
Which metal is kept in kerosene oil? – Sodium
What is the disease caused by deficiency of vitamin D? – Rickets
What is artificial rain? – Moisture is induced artificially in clouds to induce rainfall. Either potassium iodide, silver iodide or dry ice (solid carbon dioxide) are spread onto clouds in this process.
How is ultrasound detected? – using ultrasonic devices
What is blood cancer known as? – Leukemia
Which gas is released when bleaching powders meet with water? – Chlorine
How long is RBC’s life? –120 days
Bio gas is made up of? – Methane
Transformer works and which principle does it work on? – Faraday’s Law
pH value of NaCl? – 7
DDT pesticide is used for? – To protect plants from pests.
Where is protein digested? – Small Intestine
Which enzyme is responsible for digestion? – Bile
Which disease is known as Royal Disease? – Haemophilia
Rate of change of momentum is called and its unit? – Force, N (Newton)
Unit of Resistance – Ohm
HCL full form – Hydrochloric Acid
