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Question:- The main chemical constituent of clay is A. silicon oxide B. aluminium borosilicate C. zeolites D. aluminium silicate
Answer:- Option D
Question:- The mineral containing both magnesium and calcium is A. magnesite B. calcite C. carnallite D. dolomite
Answer:- Option D
Question:- The metal does not give H2 on treatment with dilute HCL is A. Zn B. Fe C. Ag D. Ca
Answer:- Option C
Question:- The number of g-molecule of oxygen in 6.02 x 1024CO molecules is A. 1 gram of molecule B. 0.5 gram of molecule C. 5 gram of molecule D. 10 gram of molecule
Answer:- Option C
Question:- The most extensive, commercially useful source of thorium as monazite sand occurs in India at A. Orissa coast B. Travancore coast C. West Bengal coast D. Gujarat coast
Answer:- Option B
Question:- The main active constituent of tea and coffee is A. nicotine B. chlorophyll C. caffeine D. aspirin
Answer:- Option C
Question:- The maximum number of isomers for an alkene with molecular formula C4H8 is A. 5 B. 4 C. 2 D. 3
Answer:- Option B
Question:- The hardest form of carbon is A. coke B. graphite C. diamond D. charcoal
Answer:- Option C
Question:- The most important ore of aluminium is A. bauxite B. magnetite C. haematite D. monazite
Answer:- Option A
Question:- The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of A. an addition reaction B. a condensation reaction C. an oxidation reaction D. an elimination reaction
Answer:- Option B
Question:- The number of electrons presents in H+ is A. zero B. one C. two D. three
Answer:- Option A
Question:- Is H+ a hydrogen ion?
Answer:- H+ is a hydrogen ion, and it is an ion because it LOST an electron. Electrons are negatively charged. When an atom gains electrons it will have NEGATIVE charges. So it has zero electron.
Question:- The hottest part of the gas flame is known as A. luminous zone B. dark zone C. blue zone D. non-luminous zone
Answer:- Option D
Question:- The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is A. carbon B. hydrogen C. oxygen D. nitrogen
Answer:- Option C