1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct sequence given below containing neutral, acidic, basic and amphoteric oxide each, respectively, is

A
NO, ZnO, CO$$_2$$, CaO
B
ZnO, NO, CaO, CO$$_2$$
C
NO, CO$$_2$$, ZnO, CaO
D
NO, CO$$_2$$, CaO, ZnO
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Read the following statements and choose the set of correct statements :

(A) Chrome steel is used for cutting tools and crushing machines.

(B) The fine dust of aluminium is used in paints and lacquers.

(C) Copper is used for reduction of alcohol

(D) Zinc dust is used as a reducing agent in the manufacture of paints

(E) Iron is used for galvanising zinc

Choose the most appropriate answer from the options given below :

A
(D) and (E) only
B
(A) and (D) only
C
(A), (B) and (D) only
D
(B), (C) and (D) only
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

Choose the correct sequence of reagents in the conversion of 4-nitrotoluene to 2-bromotoluene.

A
$$\mathrm{NaNO}_2 / \mathrm{HCl} ; \mathrm{Sn} / \mathrm{HCl} ; \mathrm{Br}_2 ; \mathrm{H}_2 \mathrm{O} / \mathrm{H}_3 \mathrm{PO}_2$$
B
$$\mathrm{Sn} / \mathrm{HCl} ; \mathrm{NaNO}_2 / \mathrm{HCl} ; \mathrm{Br}_2 ; \mathrm{H}_2 \mathrm{O} / \mathrm{H}_3 \mathrm{PO}_2$$
C
$$\mathrm{Br}_2 ; \mathrm{Sn} / \mathrm{HCl} ; \mathrm{NaNO}_2 / \mathrm{HCl} ; \mathrm{H}_2 \mathrm{O} / \mathrm{H}_3 \mathrm{PO}_2$$
D
$$\mathrm{Sn} / \mathrm{HCl} ; \mathrm{Br}_2 ; \mathrm{NaNO}_2 / \mathrm{HCl} ; \mathrm{H}_2 \mathrm{O} / \mathrm{H}_3 \mathrm{PO}_2$$
4
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

How are edge length '$$a$$' of the unit cell and radius '$$r$$' of the sphere related to each other in ccp structure? (Choose correct option for your answer)

A
$$a=2 r$$
B
$$a=r / 2 \sqrt{2}$$
C
$$\mathrm{a}=4 \mathrm{r} / \sqrt{3}$$
D
$$\mathrm{a}=2 \sqrt{2} \mathrm{r}$$
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