NCERT Class 11 Chemistry Multiple Choice Questions(MCQs) & Answers
NCERT Class 11 Chemistry
QUESTIONS
NCERT Class 11 Chemistry Objective type Questions & Answers
51 Charcoal is
A Hygroscopic
B Amorphous
C Crystalline
D None of these
52 Bauxite is an ore of
A aluminium
B iron
C copper
D zinc
53 Which one of the following is the softest?
A Lithium
B Aluminium
C Iron
D Calcium
54 What is a mixture of potassium nitrate , powdered charcoal and sulphur called?
A Gun Powder
B Paint
C Glass
D Cement
55 Which substance is used to retard the setting action of cement?
A CaSO.2HO
B NaO + KO
C AlO
D CaO
56 For Which one of the following is the density maximum ?
A Water
B Ice
C Chloroform
D Benzene
57 Which one of the following glasses is used in bullet proof screens?
A Reinforced glass
B Jena glass
C Pyrex glasss
D Soda glass
58 Which one of the following is used as a mordant in dyeing and tanning indusrty?
A magnesium sulphate
B magnesium chloride
C Magnesium oxide
D magnesium carbonate
Answer: magnesium sulphate
59 Periodic table was given by
A Mendeleef
B Arrhenius
C Lavoisier
D Faraday
60 Commercially, sodium bicarbonate is known as
A Baking soda
B Bleaching powder
C Washing soda
D Soda ash