Everyday Science MCQs

5120 MCQs  (Page 213 of 512)

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Transition elements, in general, exhibit the following properties, except one. Name that property?
A. Variable oxidation state
B. Natural radioactivity
C. Tendency to form complexes
D. Formation of alloys
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Which of the following alloys contain(s) Cu and Zn?
A. Bronze
B. Brass
C. Gun-metal
D. Type metal
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Which of the following is soluble in water?
A. Agf
B. Agcl
C. Agbr
D. Agi
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The maximum oxidation shown by manages is_________?
A. +2
B. +4
C. +5
D. +7
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Colour in transition metal compounds is attributed to____________?
A. Small sized metal ions
B. Absorption of light in uv region
C. Complete ns sub-shell
D. Incomplete (n-1) d sub-shell
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Which of the following statements is false about transition metals?
A. They form complexes
B. They show variable valency
C. All transition metal compounds are paramagnetic
D. They form coloured ions
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Which of the following is a component of soap?
A. Sodium sulphate
B. Sodium stearate
C. Sodium chloride
D. Sodium nitrate
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The by-product of the process of Saponification is___________?
A. Methanol
B. Glycol
C. Glycerol
D. Sodium hydroxide
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Polyethylene Glycols are used in the preparation of which type of detergents?
A. Cationic detergents
B. Anionic detergents
C. Non-ionic detergents soap
D. All of above
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Soap and detergents remove the dirt from clothes due to__________?
A. Osmosis
B. Capillary action
C. Lowering of interfacial tension
D. Diffusion
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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