NCERT Class 11 Chemistry Objective type Questions & Answers

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

Answer: Amorphous
52 Bauxite is an ore of
A aluminium
B iron
C copper
D zinc

Answer: aluminium
53 Which one of the following is the softest?
A Lithium
B Aluminium
C Iron
D Calcium

Answer: Iron
54 What is a mixture of potassium nitrate , powdered charcoal and sulphur called?
A Gun Powder
B Paint
C Glass
D Cement

Answer: Gun Powder
55 Which substance is used to retard the setting action of cement?
A CaSO.2HO
B NaO + KO
C AlO
D CaO

Answer: CaSO.2HO
56 For Which one of the following is the density maximum ?
A Water
B Ice
C Chloroform
D Benzene

Answer: Water
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

Answer: Reinforced 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

Answer: Mendeleef
60 Commercially, sodium bicarbonate is known as
A Baking soda
B Bleaching powder
C Washing soda
D Soda ash

Answer: Baking soda

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