Which of the following is solid?
Which of the following is solid?A. Water
B. Stone
C. Both
D. None
B. Stone
C. Both
D. None
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Which discovery caused a revision in the periodic law as stated by Mendeleev ?
Which discovery caused a revision in the periodic law as stated by Mendeleev ?A. Location of nucleus by Rutherford
B. Atomic number by Moseley
C. X-rays by Roentgen
D. Natural radioactivity by Henry Bacquerel.According to many, including the Guinness Book of World Record,________is the world’s rarest mineral?
According to many, including the Guinness Book of World Record,________is the world’s rarest mineral?A. Painite
B. Benitoite
C. Jadeite
D. TaaffeiteBlood is cleaned by __________?
Blood is cleaned by __________?A. Lungs
B. Liver
C. Heart
D. Kidneys
The kidneys act as filters for your body. Their job is to remove toxins or waste products from your blood. If toxins build up in your blood, you will eventually die.
Other jobs performed by the kidneys:
They keep the right amount of water in the body. They balance vitamins and minerals including sodium potassium and phosphorus. They make sure the acid level in the blood is correct. Your kidneys also help control your blood pressure. Blood is cleaned by kidneys‘Christian Friedrich Schönbein’ discovery is___________?
‘Christian Friedrich Schönbein’ discovery is___________?A. Ozone
B. Radium
C. Cholorine
D. NeutronFor determining the order of reaction we use__________________?
For determining the order of reaction we use__________________?A. Refractometric method
B. Dilatometric method
C. Optical activity method
D. Half life methodWhich one of the following pairs shown diagonal relationship in the periodic table ?
Which one of the following pairs shown diagonal relationship in the periodic table ?A. Sodium and Lithium
B. Lithium and magnesium
C. Lithium and beryllium
D. Boron and Beryllium