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Dehalogenation of ethyl tetrahalide will give____________________?
A. ethene B. ethyne C. ethyl halide D. all of the above are possible Submitted by :- Jamil Ahmed
When red hot steel is rapidly cooled in water, then the process is known as ____.
Tampering Roasting Annealing Quenching Submitted by :- Muhammad Nawaz
Soda lime is a mixture of____________________?
A. CaO and KOH B. CaO and NaOH C. NaOH and Na2O D. Na2O and KOH Submitted by :- Jamil…
Which materials is a slag?
BaO Cao SiO2 CaSiO2 Submitted by :- Muhammad Nawaz
Which of the following is the compound formed by combination of impurities in the ores and foreign substance added?
Gangue Slag Matrix Flux Submitted by :- Muhammad Nawaz
Clemmensens reduction infolves the reduction of___________________?
A. ketone B. alkane C. aldehyde D. all of the above Submitted by :- Jamil Ahmed
Which is/are the ores of Mg?
Karnalite Magnesite Dolomite All of these Submitted by :- Muhammad Nawaz
When one hydrogen atom of alkane is removed then it is called________________?
A. alkene B. alkyl C. aldehyde D. saturated hydrocarbon Submitted by :- Jamil Ahmed
Which of the following is a chemical substance which is used to remove gangue from ore
Slag Matrix Flux Gangue Submitted by :- Muhammad Nawaz
Which is methyl cyanide_________________?
A. CH3NH2 B. CH3NO2 C. CH3CN D. CH2 = CH – CN Submitted by :- Jamil Ahmed