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Quiz 21
Mdcat-past-papers - SZABMU Quiz
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Board: SZABMU |
401. Among alkali metals which element reacts slowly with H₂O?
Na
K
Rb
Li
402. In transition elements, number of unpaired electrons increase up to group number:
IIIB & IVB
IB & IIB
IVB & IIIB
VB & VIB
403. The binding energy of transitional elements weakens progressively up to group:
IIIB
IVB
IIB
VB
404. When potassium superoxide reacts with carbon dioxide, following products are formed:
K₂CO₃ + O₂
K₂CO₃ + CO
KO₂ + CO₂ + [O]
KO₂
405. The color imparted by the Li wire when subjected to flame is:
Crimson Red
Greyish white
Pale Greens
Brick red
406. The trend of increasing order of densities among Group 1 elements is:
Li, Na, Rb, Cs
Na, K, Rb, Cs
Cs, Rb, Na, Li
Cs, Rb, Na, Li
407. Which of the following sulphate of Group-II elements are insoluble?
MgSO₄
BeSO₄
CaSO₄
BaSO₄
408. Which of the following element is s-block element?
Sulphur
Iron
Potassium
Neon
409. Homo-cyclic organic compounds are subdivided into two types, namely:
Alicyclic and Aromatic
Open-chain and Branched-chain
Aromatic and Non-aromatic
Anti-aromatic
410. The type of isomerism arising due to shifting of a proton from one atom to another within the same molecule is:
Chain
Metamerism
Tautomerism
Position
411. In alkanes, each carbon has which type of hybridization?
sp
sp²
sp³
dsp
412. Metamers differ from each other due to:
Functional group
Position of functional group
Shifting of proton
Distribution of carbon atoms around the functional group
413. Isomerism due to shifting of proton from one atom to another in the same molecule is known as:
Position isomerism
Tautomerism
Functional isomerism
Metamerism
414. The type of isomerism existing in a compound of molecular formula C₂H₆O is:
Functional group isomerism
Tautomerism
Position isomerism
Metamerism
415. 2-Hexanone and 3-Hexanone are best considered as:
Metamers
Tautomers
Functional group isomers
Position isomers
416. If both double and triple bonds are present then the ending given to the root is:
#NAME?
–yne
#NAME?
–ane
417. Which compound is least reactive?
Ethane
Ethene
Benzene
Ethyne
418. The correct order of reactivity of hydrocarbons is:
Alkanes > Alkynes > Alkenes
Alkenes > Alkanes > Alkynes
Alkenes > Alkanes > Alkynes
Alkenes > Alkynes > Alkanes
419. Which of the following is not oxidized by any oxidizing agent?
Benzene
Toluene
Ethylbenzene
Xylene
420. Benzene is prepared in the laboratory from sodium benzoate in the presence of:
Dil. NaOH
Alc. KOH
NaOH + CaO
Na/Ether
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