NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension: Questions 715 - 719 of 1042

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Question number: 715

» Physics » Motion and Force

Appeared in Year: 2013

MCQ▾

Question

The speeds of sound in air and sea-water are given to be 340 m/s and 1440 m/s, respectively. A ship sends a strong signal straight down and detects its echo after 1.5 s. The depth of the sea at that point is

Choices

Choice (4) Response

a.

0.255 km

b.

2.16 km

c.

1.08 km

d.

0.51 km

Question number: 716

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

H2S(g)+Cl2(g)2HCl(g)+S(s)

The reaction is interpreted as

Choices

Choice (4) Response

a.

H2S is getting reduced and Cl2 is getting oxidized

b.

Only H2S is oxidized

c.

H2S and Cl2 are reduced

d.

H2S is getting oxidized and Cl2 is getting reduced

Question number: 717

» Chemistry » Metals & Non Metals

MCQ▾

Question

Which one of the following metal oxides shows both acidic and basic characters?

Choices

Choice (4) Response

a.

CuO

b.

K2O

c.

Na2O

d.

Al2O3

Question number: 718

» Biology » Cellular Level of Organisation

MCQ▾

Question

Mitosis

Choices

Choice (4) Response

a.

occurs in gametes

b.

is a reduction division

c.

leads to recombinant daughter cells

d.

leads to formation of parental type of daughter cells

Question number: 719

» Physics » Motion and Force

Appeared in Year: 2013

MCQ▾

Question

The distance covered by a body moving along X-axis with initial velocity V and uniform acceleration ‘a’ is given by x=ut+12at2 . This result is a consequence of:

Choices

Choice (4) Response

a.

Newton’s III rd law

b.

Newton’s I st law

c.

Newton’s II nd law

d.

None of the above

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